Each of these recent cases was caused by a different strain of influenza virus. In each case, it was an animal virus, which should not normally have turned up in humans at all. Should stories like ...

Measles cases have doubled across Europe and are at the highest number for 25 years, with people in the UK warned about how ...

A CDC report on bird flu shows potential transmission of bird flu between exposed dairy workers and indoor pet cats. The report also provides a window into the lack of reporting and cooperation at ...