Thursday, December 22, 2011

Influenza is Flying High!

This article is called “Where Germs Lurk on Planes” and was written by Scott McCartney. It was published in the Wall Street Journal on December 20, 2011.



Research has showed that travelers on airplanes are at a higher risk of getting infectious diseases, such as influenza, than every day people are. One specific study shows that there is a 20% higher risk of catching the flu on airplanes than regularly on land. This percentage also rises significantly around the holidays when a lot of people are packed into planes, flying here and there.



Researchers blame the air that is continuously circulated throughout the airplane during its travel. However, the high-efficiency particulate air filters, also known as HEPA filters, can capture 99.97% of the bacteria and virus-carrying particles aboard the planes. The problem occurs when planes are being boarded and exited, or when planes have long waits on the ground. In 1979, a plane was sitting for 3 hours without circulating the air. Within two days of this happening, about 38 of the 54 passengers had flu-like symptoms.



The danger of flying in an airplane comes when you are in the ‘hot zone’ of someone who is sick. The U.S. Centers for Disease Control and Prevention says, “The hot zone for exposure is generally two seats beside, in front of and behind you.” For instance, if someone in your hot zone sneezes, that single sneeze can make up to 30,000 droplets which can reach as far as six feet.



In addition, the virus thrives in the low-humidity climate offered in airplanes at 30,000 feet off the ground. Your mucous membranes dry out at such an altitude, and viruses can therefore enter your system much more easily.




The public health measures now offered to the spread of influenza on airplanes include: drinking a lot of water throughout their flight, using hand-sanitizer and disinfecting wipes throughout your trip, and not touching the seat pockets on the chairs.


In my opinion, this article relates to many of the units and concepts we have studied in class. For example, the public health measures given do exactly what the definition we learned says. They offer great suggestions to passengers to prevent illnesses, the influenza, from spreading. In addition, this article talked a lot about the air which I connected back to the Miasma Theory which came up in some of our units. People used to believe that diseases were spread due to poison in the air. I think this article is a good modern day connection to the units we have studied so far this year.




This article really showed me just how easy it is, if people are not careful, to spread germs and viruses. The image of someone sneezing in and airplane and spreading germs to everyone around them reminded me of our Cholera unit and how once you dirtied the water with your germs and feces, everyone around you could get sick.



To read more about this article, please check out:




image: http://photolibrary.usap.gov/Portscripts/PortWeb.dll?query&field1=Filename&op1=matches&value=AIRBUS_INTERIOR1.JPG&catalog=Antarctica&template=USAPgovMidThumbs
by: Christine Johnson

Wednesday, December 21, 2011

Experimental malaria vaccine shows early promise

Reuters) - British scientists have developed an experimental malaria vaccine that may have the potential to neutralize all strains of the most deadly species of malaria parasite.

Results from very early tests of the vaccine in mice and rabbits show it induces an antibody response able to halt many strains of the P. falciparum parasite, the form that causes almost all of the 655,000 malaria deaths worldwide each year.

The researchers, whose work was published in the journal Nature Communications on Tuesday, plan to take the vaccine into early stage human trials in two to three years, but it may be a decade or more beyond that before it is fully developed.

"Vaccines against malaria are notoriously difficult to develop," said Adrian Hill of Britain's Oxford University, who worked on the vaccine research team.

This vaccine builds on work published last month by the same team, who pinpointed a single receptor for a protein called RH5 that is critical for the malaria parasite to gain entry into red blood cells where it multiplies and spreads.

The researchers said in November they thought that by blocking this process, they could halt the disease in its tracks - and Tuesday's results confirm their thinking.

"What's exciting about RH5 is that we've shown that antibodies against this protein have so far knocked down every parasite we've been able to test in the laboratory," Simon Draper of Oxford's Jenner Institute, who also worked on the study, said in a telephone interview.

"We haven't found one yet that the vaccine isn't able to stop."

Malaria is a mosquito-borne parasitic disease that killed around 655,000 in 2010 according to latest World Health Organisation data. The vast majority of malaria deaths are among children and babies in sub-Saharan Africa.

The blood stage of the parasite's life cycle begins when it invades human red blood cells, and it is this stage that is responsible for malaria illnesses and deaths.

Scientists have been working for decades on trying to develop an effective vaccine against the disease, but this has proved particularly tricky because the parasites' antigens - the target of vaccines - tend to be genetically too diverse.

Researchers say RH5 doesn't show this diversity, making it a particularly good target for a vaccine to exploit.

British drugmaker GlaxoSmithKline published data in October showing its experimental vaccine, RTS,S, halved the risk of children getting malaria in a large trial in Africa, making it likely to become the world's first licensed malaria vaccine.

Other teams of researchers around the world are also working on other approaches to a malaria vaccine.

Experts agree that wiping out the disease - a goal the scientific community says could be achieved in the next few decades with the right tools - will need a vaccine that is more effective than RTS,S.

"Unlike RTS,S, which aims to stop the parasite getting into the liver, this RH5 vaccine is trying to kill the parasite in the blood," Draper explained. "So it may be possible that the RH5 vaccine could complement RTS,S."

"Ultimately we don't know until we test our vaccine in humans whether it will be more efficacious than RTS,S. But these data on RH5 are some of the most exciting in the field at the moment."

(Editing by Peter Graff)

Source:

http://www.reuters.com/article/2011/12/20/us-malaria-vaccine-idUSTRE7BJ17W20111220

This article shows the progress that science is making. Malaria is an epidemic that has been around for many years and has killed many people. This article states that it killed 655,000 people in 2010! That is a staggering number and it is sad that so many people have been killed from a disease that we know the cause of. However, it is clearly hard to prevent this mosquito-borne parasite from claiming more victims. Creating a vaccine, that has so far been positive, is a huge step for scientists who work to fight Malaria. This vaccine has been tested on mice and other animals and hasn’t had any complications. However, I think that there still could be potential for problems and it is a good idea for the scientists to continue there research. The article says that it could be ready in two or three years. These scientists should be very proud of their findings, and hopefully they will be successful and discover a vaccine to combat a major epidemic disease.



Catching More Than Just Your Flight


The article “Where Germs Lurk on Planes” by Scott McCartney was published in the Wall Street Journal on December 20, 2011 and can be found by visiting http://online.wsj.com/article/SB10001424052970204058404577108420985863872.html

In this article, McCartney claims that infectious diseases are spread in airplanes when the air circulation systems are shut down, which is common during long waits before takeoff. In a 1979 study where an airplane was without air circulation for three hours, 72% of the passengers contracted the same strain of the flu, which then was traced back to one of the passengers on board.

The other factors that contribute to the high rate of infections spreading on planes are the high altitude, extremely dry air, and germs hidden on places such as tray tables, seat pockets, pillows and blankets. Moreover, some viruses can live up to one day on a plane, which makes disease contraction much easier.

McCartney writes about the infectious disease SARS and states, “On one flight studied, one passenger spread a particular strain to someone seated seven rows away, while people seated next to the ill passenger didn't contract the disease.” This account shows how unpredictable the spread of infectious diseases is on airplanes. One would think that a passenger sitting next to someone with SARS would be much more likely to contract the disease than a passenger seven rows away would.

McCartney’s tips on how to avoid getting sick while traveling on an airplane include washing your hands frequently, changing seats if someone around you is coughing or sneezing, avoiding using airline pillows and blankets, and using a disinfecting wipe to clean your tray table before using it.

As I was scrolling through Google News, this article struck me because I had always placed a lot of faith in airlines in that they would try their hardest to avoid hidden germs from multiplying. Luckily, I have never gotten sick after traveling but this article made me realize that I should be more cautious about germs while on a plane. With the holidays rapidly approaching, I thought this was an appropriate article to get the word out that people should keep their health in mind while on airplanes.

As we leaned in the Black Death unit in class, travel is a contributing factor to the spread of infectious and epidemic diseases. However, I had never thought about the fact that a disease that only one passenger had could be rapidly spread while on a plane, and then the other passengers who contracted the disease could spread it even further from there.

Reading this article made me wonder if passengers in the First Class section of the airplane are less likely to contract diseases than passengers in other parts of the plane. It would be very interesting if a study was conducted to determine this answer, because it might show that airline employees sanitize the First Class sections of the plane more than the other sections. If this was found to be true, I think an uproar would ensue.

I think that airlines should make a bigger effort to keep their airplanes as sanitary as possible. Airlines should be aware that travel is such a big factor in the spread of infectious diseases. Something as simple as providing hand sanitizer for passengers could make a difference between stopping a disease from spreading and allowing a disease to be spread.


Picture: http://i.dailymail.co.uk/i/pix/2009/01/30/article-1132198-033E3448000005DC-482_468x286.jpg

Don't Let the Jigger Bugs Bite!

On October 22, 2010, MSNBC writer, Godfrey Olukya, reports the growing epidemic of the rot of flesh (medically known as Tungiasis) by small insects colloquially referred to as 'Jiggers' in Uganda Africa. According to James Kakooza, Uganda's minister of state for primary healthcare, Jiggers kills many young children, and shortens the life of many adults, by burrowing into the skin, sucking their blood, and causing the flesh to rot. This article consists of comments from the natives of Uganda, and public health, and government officials.

Tunga penetrans, commonly known as Jiggers, are small insects with similar characteristics to that of the common flea. They are the reason so many Ugandans, and people from parts of Latin America, the Caribbean, and sub-Saharan Africa are infected with the flesh rotting disease each year. The Jiggers burrow into a person's body, suck the blood, wax and multiply by the hundreds, and cause parts of the body such as the feet, the hands, buttocks, lips, and even the eyelids rot away.

"For the last three years I have been suffering from Jiggers. I lost two children killed by Jiggers," said a sixty year old Ugandan man. The disease killed at least twenty Ugandan people, and infected over twenty-thousand in the short time span of two months. Ministry of Health official in eastern Uganda writes, "It is common the find graves of whole families wiped away by Jiggers."

Though such a horrific disease seems to have symptoms written by Stephen King himself, there is hope. Kakooza says, "It is an epidemic which we are fighting against and I am sure over time we will eradicate the Jiggers." Like many problems that occur in dense poverished areas, the recurring factor is the lack of sanitation. "We are also telling them to use medicated soap. They can apply petrol and paraffin in places infested by Jiggers and they die," said Kakooza.

Unfortunately, the disease continues to spread throughout Africa and other continents, by way of travel and trade. The Jiggers like to live in dirty and dusty areas, and can easily survive on ships and transport trucks. The Ugandan government set aside one-million US dollars to fight the growing epidemic. It require topical medication, and the removal of the insects.

Personally, this article reflects the startling pain Africa feels everyday. The author describes images of people walking around on all fours and wailing in agony. I find it very interesting that the Ugandan government has only set aside one million dollars to contribute to the eradication of the insects. It absolutely makes me question the worth of material things against the simple health of our geographical brothers and sisters.

Tuesday, December 20, 2011

Something Batty is Happening in West Africa



Many different creatures are found around the world, from fish to frogs, to bears and bats and they all can carry diseases that can be spread to humans. But how do diseases jump from one species to another?
During the past few years researchers have been trying to find an answer to this question. In West Africa bats have been the cause of the spread of Ebola hemorrhagic fever and SARS.
Researchers believe that the cause of this species jump between bats and humans is because bats natural habitats are being destroyed causing them to move into West African homes and even some hospitals.
Another cause is because people in the area are beginning to eat bats because more traditional food like apes and antelope are either a protected species now or are simply not as available anymore to the people in the area.
The relation to bats living closer to humans is similar to the Black Plague and people living with rats. The plague was a result of rats moving in with people at the time and leaving behind their fleas for the host families to be bitten by making them sick and dying eventually.
Another example in history is smallpox. When the Columbian exchange began with all the new goods being brought to the new world disease was also brought infecting the natives. Europeans had built up immunity to Smallpox because they lived so close to their animals, but this was not the case for the natives.
There have been many examples though out history with disease jumping from species to species.
Researchers fear that one day it will be out of their control and there will be no way to stop it.
“We are concerned the solution will be to just kill the bats to control the virus. We need to find another way that protects bats and people at the same time.” Says Andrew Cunningham; bats play a key roll in the pollination of plants and to kill them off would effect the growth of many plants. With killing one species it affects many other species as well. All the species in an ecosystem play a part to make it work but if you remove one part others don’t work.
Not only has there been a problem with bats spreading disease in West Africa but pigs have been spreading disease as well. “It looks like there is a spill-over from bats to pigs in Ghana. This is the first step along the line to a public-health threat.” States Andrew Cunningham a wildlife epidemiologist. The great deal of pigs and their meat that is exported in Ghana causes for a fear of the diseases to be spread even further than the continent of Africa.
Recently there has been a movie made about this species cross over “Contagion”, shows just how fast a disease can be spread from species to species. In the movie bats live in the barns with pigs leading to bat droppings getting into the pig food and soon into humans.



Source: Nature News





Monday, December 19, 2011

Dengue Fever in Trinidad




My family and I are from Trinidad and Tobago, two sister islands approximately 8 miles off the coast of Venezuela. In Trinidad, Dengue Fever is very common, though the most recent outbreak was not declared an outbreak until August of 2010 when over 300 people had been diagnosed with dengue. This article is of interest to me mainly because over the past year since I last visited, there have been over 3000 reported cases of Dengue and yet the Ministry of Health has yet to properly deal with the situation despite this article.

Knowing what I know about how the Ministry of health works, I would say that the article is somewhat misleading. The Ministry has been down playing the serious of the disease since the start of the most recent spread. They waited nearly two months before declaring an outbreak, despite the numbers which had been steadily increasing since July of 2010. People were getting the disease without knowing it, and becoming seriously ill without really understanding that it was dengue.

I can also say that the Ministry overall ( this includes the Health sector) was very aware that the newer mosquitos had evolved and were resistant to strong and the rather harmful flit
(Trinidadian word for Bug spray) such as this one above. Trinidad is also in a massive breeding ground for the mosquitos that carry Dengue because of the Rain Season and the forever hot climate. Mosquitos thrive in wet areas, and since the Ministry of Public Safety seems oblivious to the never ending pot holes that are never filled in. This is especially unusual because Trinidad has what is called pitch lake...the very material we use to make roads.... These pot holes are almost always filled with rainwater and an abundance of mosquito eggs. Knowing that this is only aiding the spread of the disease and taking no action has led to a great anger with the already shaky Parliament. More recently our newest Prime Minister was sick with a mild case of Dengue Fever.

Really, I posted this particular article out of amusement because I know how disorganized Parliament (Trinidad's Government, also known as the Ministry) is, and this article makes it seem as though they clearly understood the dangers, AND were being proactive in their fight against Dengue, even though really, they're only really on trying now because children are becoming infected left and right. There aren't enough hospitals or space, and the medical help is poor, and or dealings with the public health and safety are poor, but Trinidad is certainly on top of things...right. Check out the article I refer to here.
Also if you're interested in our Honourable Prime Minister Kamla Persad Bissessar. And lastly, an article written by a not ministry representative here.








Thursday, December 15, 2011

The Fight Against The War on (Micro)Terrorism

U.S.: 1, Future Terrorists: 0. Researchers in Arizona might have finally discovered a possible vaccine to combat the Ebola virus. The Ebola virus is of African origin. Though it is very rare to contract (1,850 cases since 1976), it is extremely deadly (1,200 deaths). Victims of the Ebola virus experience organ failure after the immune system is overtaken by the virus.


Researchers found the vaccination after testing a vaccine consisting of a tobacco plant and an antibody combined together. The vaccine was then given to ten lab mice, which were then infected with Ebola. Out of the ten mice given the vaccine, 8 were able to overcome the disease. Though more research needs to be conducted, it is a positive sign for prevention from the thirty five year old disease, which has no current vaccination.

“The virus has a natural reservoir in several species of the African fruit bat. Gorillas and other non-human primates are also susceptible to the disease.” Researchers believe the virus is zoonotic and found in African primates. Not enough is known about the reservoir and it is one of things scientists need to further investigate.


The virus has long been feared as a biological weapon. The disease’s deadliness and discreetness have caused officials to be concerned about the Ebola virus. The government has attempted to store samples of the disease to use in case of a biological attack, but none of which survived. With an incubation period of 2-21 days, the virus can be spread through contact with an infected person’s blood or secretions. Also, with no current vaccine or standard treatment, a bioterrorist attack could be catastrophic.


This article relates to the Black Plague being used as a weapon of war. When bodies of infected soldiers were thrown over the walls of Caffa, no vaccine or treatment for the plague existed, thus, nearly wiping out the population.


I found this article interesting due to the fact that I had never heard of the virus before. With every 2 in 3 people dying from the disease, I assumed it would be more commonly known. I also found it interesting due to how effective the disease can be to use in a terrorist attack. The disease has no vaccine or well developed treatment. A terrorist attack using Ebola could be devastating.


From reading this article, I wondered if the United States is prepared for a biological attack. Do we have the resources in place to deal with the disease? Will an attack affect our civil rights and liberties? And if we are prepared, what is our response plan? Would there need to be another 9/11 type incident for us to fully realize the threat of bioterrorism?


I believe that, though we cannot fully prepare ourselves for an attack, we can focus on having measures planned out to be put in place in case of an attack and more research on diseases that can used by terrorists against us.


Source: New York Daily Times (12/12/11)



Read the Article:






Learn More About Ebola Virus:










Wednesday, December 14, 2011

Why It's Not A Good Idea To Castrate Lambs With Your Teeth

http://www.digitaldesktopwallpaper.com/downloads/ddw/lamb_wallpaper_001.htm



In a recent article I read called Castrating Lambs With Your Teeth May Make You Sick (on this website: http://blogs.wsj.com/health/2011/12/08/cdc-castrating-lambs-with-your-teeth-may-make-you-sick/) by Katherine Hobson written on December 8th, 2011, I found that not only are some people dumb enough to use their teeth in medical procedures, but that it is also very easy to contract diseases from animals if you are not safe. The CDC wrote a report about a couple that got Campylobacter jejuni by literally castrating lambs with their teeth. This disease lasts for 5-7 days and is similar to cholera in that it is contracted from fecal matter and dehydrates the body. The easiest cure is to drink water and get electrolytes into your body.



On woman, Kerry Pride, said “this method has and does occur. It was more common in the 1800s, but still goes on." I believe that with all the knowledge we have today about diseases and how to practice safe medical procedures that these two workers would have known better than to use their teeth for such a messy job. Plus with modern technologies there would be no need for them to use their teeth to complete the job. I am sure the workers have their reasons for doing this procedure the way they did it. Maybe they were old fashioned or thought it was easier. Nonetheless it seems like a bad idea if you ask me. I would not put my mouth anywhere near any animals body parts because who knows whats lurking on their skin or fur or whatever they have. If you performed this procedure with your teeth would you be concerned with health issues or would you assume it was safe?


The workers put themselves at risk by putting their mouths where they shouldn't have so I believe they are to blame for getting sick. They were instructed on other methods, and even if they wished to continue using their teeth, they should have practiced safer and cleaner techniques. I think that today disease comes down to how you conduct your lifestyle. If you dont pay attention to health issues and cleanliness you are likely to get sick, however if you make sure to wash your hands and have a clean environment for things you will be ingesting or touching then your risks of getting sick greatly decrease.

It's That Time of Year Again...


As we head full force into winter this year, the Centers for Disease Control (CDC) is urging people to get their flu shots again. Although the vaccine will be the same that was used last year, the CDC stills says it's imperative that people stay protected. Last week the CDC announced that from December 4th to the 10th would be National Influenza Vaccination Week. Still Americans are becoming less concerned with protecting themselves from the flu. Last year only 42% of Americans got their flu shots.

Dr. Andrew Pavia of the Infectious Diseases Society of America (IDSA) thinks that protection befits outweight the risks and more people should stay protected. He also stated:

“The flu shot is like the seat belt- it’s easy to use and protects against serious complications, even if the protection is not perfect… Last year, during a relatively mild flu season, we treated very severe complications of the flu in otherwise healthy teenagers. So, just as everyone uses seat belts, everybody, even healthy people, should get the flu vaccine.”

Many people don't know that after a year the vaccine can wear off, and you can get infected this year, even if you got the flu shot last year.

The ISDA’s president Dr. Thomas Slama has also said that not just the elderly and very young are at risk, but those who usually just rely on their good health can be at risk for a serious case of seasonal influenza:

“People often shrug off concerns about the flu, yet every year it strikes up to 20 percent of Americans, sending more than 200,000 to the hospital and killing thousands.”

The ISDA and the CDC are trying to make sure that everyone 6 months and older are protected this year. And it's not that outrageous of a request. This vaccine is the most accessible thing out there today. Vaccines are available in doctor's offices, retail outlets, and pharmacies across America.

As someone who spent from Friday to Monday of this week suffering from Seasonal Flu symptoms, I would highly recommend that everyone gets their flu shot, and steers clear of this virus. People don't realize how serious Influenza can be, and how many people are hospitalized and killed from this disease. There is no reason not to stay protected, so make sure you get a flu shot and stay healthy this holiday season!

To Read more about this check out:
http://www.inquisitr.com/167992/get-the-flu-vaccine-america-cdc-urges/
OR
http://yourlife.usatoday.com/health/story/2011/08/CDC-Dont-skip-this-years-flu-shot/50056926/1

Tuesday, December 13, 2011

Another Outbreak of Cholera in Zimbabwe?


With the increase in cases of water born diseases, such as typhoid, dysentery, and watery diarrhoea, there is a new worry that all of these diseases will reach epidemic level. This is creating a concern for the conditions in Zimbabwe regarding a reprise of a cholera epidemic like the one in 2008-2009 that killed 4,000 people. The country of Zimbabwe is asking for US support in fixing their sanitation issues after over a decade of neglect. It used to be worse but a third of Zimbabwe's population still only have limited access to clean water and health services. Although $80 million has already been donated during the previous outbreak of cholera, it is estimated that in order to obtain basic services and sustainable water for all $800 million will have to be donated annually.

The urban poor have been forced to get their water from shallow wells which are easily contaminated. This is due to poor sanitation infrastructure, the start of the rainy season, and cut-offs of water to households because of the inability of many people to pay their bills. It's no wonder that these waterborne diseases are nearly reaching epidemic level. The common people have no control over these things and are forced to due what they can to survive which is very often using whatever water they have available to them whether they know it's contaminated or not.

Officials from both the health center and NGO have assured IRIN that the situation is being monitored but have not confirmed whether there have actually been cases of cholera. This poses a major potential disaster because it is very hard to control outbreaks in the many vulnerable areas of Zimbabwe.
This article relates directly to what we are doing in class right now on the subject of cholera. Similarly to the epidemic outbreak of cholera in London, this potential outbreak in Zimbabwe would arise due to poor sanitation. It is an easy disease to cure but very hard to prevent in places that are in such poor condition.

Thursday, December 8, 2011

Chickenpox Lollipops for Sale!



CBS News writer Walter Freeman reported on November 7, 2011 regarding the very sticky and icky situation that Tennessee has found itself in. According to Jerry Martin, a U.S. attorney for the Middle District of Tennessee, parents have been purchasing lollipops via Facebook that have been licked by someone ill with chickenpox. The article is filled with comments from all perspectives of the event; a government official, a doctor, and a subject selling chickenpox lollipops all sharethoughts.

Parents have been purchasing this alternative method of immunization through a Facebook group called “Find a Pox Party in Your Area”. The customers could order chickenpox infected lollipops, q-tips, and spit. A vendor of the items, Wendy Werkit of Nashville, TN, justifies her sales because kids “can't get (chickenpox) the normal way anymore of just naturally catching and just naturally getting the immunity for life”.

Dr. Isaac Thomsen, a pediatric infectious diseases specialist at Vanderbilt Children's Hospital, says that this transmission is unlikely effective in giving chickenpox to other people. Thomsen worries more about other diseases that could potentially be on the lollipops, such as hepatitis. He also worries because one person on the Facebook group asked if she could acquire anything with measles on it, an even
more dangerous disease than chickenpox.

District attorney Martin asked the Associated Press "Can you imagine getting a package in the mail from this complete stranger that you know from Facebook because you joined a group, and say here, drink this purported spit from some other kid?” His comment captures the feel of the entire situation; it is horrible, disgusting, and dangerous.

This article relates to a topic that we will study in the future: vaccination debate. The persons who purchased the chickenpox infected items did so because they did not want their child to be vaccinated. They disagree on the process of vaccination for their own personal reason and therefore searched for another method to immunize their child.

Today’s vaccination debate has many sides to it. Those who are opposed to vaccines have that mindset for medical and religious reasons. Some believe that vaccines cause harm in the development of a child. Other people’s religions put restrictions on their medical practices because ultimately, God will choose their path. Still, others hold beliefs that overcoming a disease will make the child stronger in the grand scheme of things.

Personally, this article is repulsive. It is fascinating that even with modern knowledge people would still sell a chicken pox infected lollipop. Worst, there are people in the world who will gladly purchase it. It is understandable that some do not support vaccines, but they could at least expose their child to the disease in a different method.

Satellites Can Be Used To Track Disease?

We all know that satellites can be used to map the earth's terrain. Now online maps such as Mapquest and Google Maps make these satellite images ready at our fingertips. But, did you know that satellites are now being used to track measles across the continent of Africa? Probably not. A recent study explains how this is possible.

Measles kills thousands of people in Africa each year. It is commonly spread during the dry season when workers migrate to large cities in search of work. A lot of the time there is no electricity so any fluctuation in the amount of light coming from a certain area is clearly noticeable. Assuming that someone in the population of workers has measles means that the whole group could get it because the workers are living in densely populated areas.


By tracking the light given off by the worker's camp's and villages they can track their movement across the continent. Since measles seems to follow the group, they can also track the disease and predict where it will appear next. If doctors know where the disease will be heading next, they can get there before it and administer vaccination to prevent the disease from spreading. This method can be adapted for use with many other types of illness and disease

Click Here For Original Article

Wednesday, December 7, 2011

You Are Being Watched!



A New York Times reporter, Tina Rosenberg, brought her attention to the intensive care unit at North Shore University Hospital in Manhasset, New York just before this November‘s thanksgiving break, around the 24th. The focus of her article is hand washing and innovations that this particular hospital is taking in order to stress the importance of sanitizing your hands often. Hospitals all over the world are constantly trying to improve their hygiene rate, as the spread of disease in hospitals is very dangerous and often deadly to patients previously admitted. Interestingly many hospitals are already recording hygiene rates on a week to week basis. But North Shore hospital is taking things to a new level with an idea they often call “The Electronic Eye”. Starting earlier this fall the hospital displayed two L.E.D displays on the wall’s across from their nursing stations. The L.E.D is very strict about its recordings of hand washers. The health workers must wash their hands properly within 10 seconds of entering, and also exiting their patient’s room. The L.E.D is a sort of video system that monitors the hand washing.


According to the article this method seems to be the most effective way of trying to improve hand washing in hospitals. Yet the option of an “electronic eye” is rather costly to some hospitals. Others have tried things such as tracking the amounts of alcohol hand gel and hand soap used over periods of time. However this is a rough estimate and can be unrealistic, because the non washer criminals are usually repeat offenders. Some hospitals have also tried something along the lines of a private investigator, where staff members secretly watch their fellow employees and record the progress in the hand washing movement. Unfortunately, this often fails because people argue that it is against their privacy rights at work.


The “electronic eye” has been very successful in upping the rate of hand washing in the ICU unit at this hospital. Recently their weekly hand washing rate has reached 82%. The hospital claims that they are proud of this number, but isn’t it scary that there is still 18% of staff members not washing their hands before and after working with patients in critical condition? Rosenberg herself wrote “ Hospitals do impossible things like heart surgery on a fetus, but they are apparently stymied by the task of getting health care workers to wash their hands…ICU’s, where health care workers are the most harried, usually have the lowest rates.” Patients are at much higher risk in an ICU for infection which makes there hand washing passing rate of about 40% scary.


Earlier this year, we focused on the movement to increase hand washing rates in the United States. Not washing your hand is actually one of the easiest ways to spread germs. We learned that there are germs everywhere and on everything that we touch. Everything from door handles to faucets to gym equipment. The fact that patients in hospitals and specifically ICU’s are at highest risk for disease is scary because many of their caretakers are not washing their hands. Most people understand that the concept of hand washing can prevent the spread of disease. But what some are naïve to is the proper way of hand washing, and when not done correctly is not as effective. Soap and water must be used at all time. Rinsing is hardly effective at all. If possible warm water is the best. But how long should we wash? Little reminders have been made up such as singing “happy birthday” twice while washing. Some opt for the use of sanitizing gels instead, but when using these you must make sure that the gel has not expired and has a high alcohol content in order to kill germs. However the old fashioned way of soap and water is really the most effective. Interestingly, the article I researched is focused in a New York hospital, and we learned earlier this year that New York was the dirtiest location when it came to hand washing surveys.


The reporter of the article seems to be in support of the idea of the “electronic eye” to promote hand washing and she stresses its importance in keeping everyone healthy. I completely agree. Some argue it is an invasion of privacy, but I would argue that it is necessary in saving lives of patients. Specifically in the ICU, which the article focused on. The only thing concerning me, and something that I might ask is how costly exactly are these devices and will every medical facility be able to afford them some how? I think it is a possibility that after the device has done its job and reached hundred percent washing rates, that potentially it could be removed and put in another location, hoping that the message was stressed enough. However for the most part I think it is a great concept and a move in the right direction.

Monday, December 5, 2011

We're Blogging!

Welcome to our class blog, "Studying Epidemic Disease at RMHS: Infectious Disease in the News." This is a place where we will track recent news stories about infectious disease. You'll not only have the opportunity to write about what's in the headlines but you'll also engage in a dialogue with your classmates about the news stories that are shared.

We're looking forward to hearing about what interests you regarding current issues around epidemic disease and also to seeing how you make the important connections between class topics and studies and the current articles you find. Happy Blogging!