epidemiology
grrlscientist | May 19, 2007tags: Trypanosoma evansi, parasite, wasting disease, Tabanus, Australia, conservation
A PhD student from James Cook University in Australia hopes her research will help protect Australian wildlife from an exotic wasting disease that could devastate kangaroos and other endemic marsupials.
Kirsty Van Hennekeler has spent four years studying Surra, the disease caused by a parasite that lives in mammalian blood. This parasite, Trypanosoma evansi, causes fever, weakness, and lethargy in its victims and can lead to weight loss, anaemia and even death of infected animals. It is thought this parasite…
grrlscientist | May 9, 2007tags: five-second rule, food, bacteria, microbiology
Have you ever heard of the five-second rule, where you can pick up food that has fallen on the floor within five seconds and eat it without risk of illness? Do you follow it? In 2003, a then-high school science intern at the University of Illinois, Jillian Clarke, conducted a survey and found that slightly more than half of adult men and 70 percent of adult women knew about the five-second rule and many said they followed it. Clarke then conducted an experiment to find out if various food became contaminated with bacteria after just five…
revere | May 1, 2007Last week we talked about "mash-ups," the combination of online resources from disparate sources, and pointed out that Google Maps and Google Earth were favorite substrates for this. Declan Butler, senior correspondent at Nature, is the first we know of to construct a Google Earth mashup for bird flu. Now there is a very sophisticated version from scientists at the University of Colorado and Ohio State University:
The research team has tracked the spread avian flu around the globe over time by specific host groups of birds, mammals and insects. (Credit: CU-Boulder, Ohio State University)
A…
revere | April 22, 2007A mashup, in online talk, is a site or application that combines content from several sources. Google Map is a favorite matrix for mashups and one of the most intriguing (for us) is one called "Who is Sick?" It's a voluntary geographically-based reporting system for sickness:
A new Google Maps mashup helps you track colds, flus and other bugs in your community.
Start by entering your city or ZIP code to see if other users have reported any sicknesses. You'll see a Google map dotted with icons that indicate symptoms like runny nose, cough, fever and headache. You can also post your own illness…
revere | April 17, 2007Some of the most boring sounding parts of epidemiology are also the most important. Take the International Classification of Diseases (ICD), now in its tenth revision (ICD-10). This is a standard way to code disease diagnoses that has its origins as far back as the 1850s. It was taken over as an official function of the World Health Organization (WHO) on its founding in 1948. By then it was already in its sixth revision. Versions of ICD9 and ICD10 are used for epidemiology, national health planning and health care management, where your insurance reimbursements are governed by ICD codes. It's…
grrlscientist | February 16, 2007Normally I do not review books that have been out for longer than a year or so, but while I was in the hospital, I decided to celebrate Columbus Day by reading a book that was sent to me by my blog pal, Tara. This book, Pox: Genius, Madness, and the Mysteries of Syphilis by Deborah Hayden (New York: Basic Books, 2004, 2005), turned out to be an interesting biography of a bacterial infection that has baffled doctors for hundreds of years.
In the first part of the book, the author observes that there are two main problems associated with an case history of syphilis: first, syphilis is "the…
grrlscientist | December 8, 2006
Ebola Virus, one of the most deadly of all viral diseases, has killed more than 5,000 gorillas in the Republic of Congo and Gabon, located in central Africa. In addition to commercial hunting of gorillas, this outbreak of ebola could be sufficient to push gorillas into extinction.
The study, published in the US journal Science, looked at gorilla colonies in Republic of Congo and Gabon. Ebola is also blamed for many chimpanzee deaths.
Ebola is one of the most deadly viruses known to primates, killing more than 1,000 people since it burst upon the medical scene in 1976. Ebola causes a viral…
grrlscientist | December 3, 2006Fifteen years after most scientists have discounted the validity of "Gulf War Syndrome", which was first observed after the Iraq-US war I that ended in 1991, Epidemiologist Robert W. Haley has been trying to prove that thousands of troops were poisoned by a combination of nerve gas, pesticides, insect repellents and a nerve-gas antidote.
But the scientific concensus is that this syndrome is a myth.
"After hundreds of millions of dollars and a decade or better of research, we really haven't made any significant findings," said John R. Feussner, who was VA's chief research officer from 1996…