Posted on April 27th, 2009 nrapp 6 comments
Health officials are investigating a never-before-seen form of the flu that combines pig, bird and human viruses and which has infected seven people in California and Texas. All the victims recovered, but the cases are a growing medical mystery because it’s unclear how they caught the virus. Thanks to Yuko Yajima from AP Tokyo for the research. Also check out our interactive version here.