The alchemistic definition of the killer bird virus (the Avian Flu). Which is a result of an outbreak in Hong Kong in 2004. It has mainly affected Japan, South Korea, Taiwan, Vietnam, Thailand, Combodia, Indonesia, Pakistan, Laos, China, and many other areas. There has recently been discovered an indicent of the virus, in France as well.
(in the news for instance)
"Another incident of the bird influenza, also known as H5N1, has been discovered today in France."