Word: virality
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Unfortunately, it's not always easy to distinguish listeriosis from other, more common food-borne illnesses. What you might think is food poisoning is often a viral infection. Typically, food poisoning is caused by one of several possible bacteria, including E. coli, salmonella, staphylococcus and listeria. Most of the time you can protect yourself against these pathogens by following a few simple safety rules. Washing your hands before and after preparing foods, for example. Or making sure all meat is thoroughly cooked. Or not using the same knife to cut uncooked poultry and chop fresh vegetables...
...people [around 80 percent] who are infected by the virus by a mosquito show no recognizable symptoms. Of the 20 percent who do have some recognizable illness, most of it is extremely mild, a "flu-like" symptom, nausea, maybe mild rash, some fatigue. These are symptoms that appear in viral infections in general...
...Zinner: At this point there is no specific anti-viral agent proven to be clinically effective against West Nile virus. There are a few candidates, and while they've only just begun clinical trials, the prospect for future vaccines or treatments is good...
MADAGASCAR Mystery Virus The United Nations health agency sent a medical team to the Indian Ocean island to identify a mystery illness that has killed at least 184 people. The viral infection, with initial symptoms including headaches, pains and stomach cramps, is thought to have affected around 1,900 people in June and July. Most of the victims live in poor, isolated rural communities. Average incomes halved this year owing to a seven-month political crisis that ravaged the economy...
...traces of the virus in the bloodstream, says Dr. Kennedy. Now scientists are focusing on the development of an HIV/AIDS vaccine that behaves like most other vaccines: the virus is purposefully introduced into the body in order to boost immune response, which doctors hope will lower the viral load and prevent AIDS from taking hold in the first place...