Here are some updates on the global status of swine influenza H1N1. As of Monday, 27 April, the US has reported 40 laboratory confirmed cases of swine influenza H1N1 infection in California, Kansas, New York City, Ohio, and Texas. Mexico has confirmed 26 human cases with seven deaths,  Canada reports ...

A novel strain of H1N1 swine influenza virus has now also been isolated from cases of respiratory disease in Mexico City, New York City, and two locations in Canada. Clearly I was wrong in hypothesizing that the five mild cases in Texas and California reported last week were not a ...

A new strain of swine influenza virus has been recently isolated from seven persons in the US. Is it time to break out the swine flu vaccine of 1976? Last week the CDC reported that swine influenza virus had been isolated from two children with respiratory illness in California. The ...

In an NYTimes Op-Ed article called "The Scary Caterpillar", Jeffrey Lockwood wrote about potential use of a virus as a weapon of bioterrorism: What if a terrorist group announced that their operatives had introduced Rift Valley fever into the United States? This mosquito-borne disease would make West Nile virus look ...

There are 62 koalas in Japanese zoos, and 50 of them are infected with koala retrovirus (KoRV). Infection may lead to leukemia and lymphoma, which could negatively impact Koala populations. What is the origin of KoRV? The koala is native to Australia where they are found in eastern and southern ...