Why is H5N1 dangerous?
The first reported cases of H5N1 infections were detected in geese in 1997 in Southern China. A total of 18 human infections were reported and six of them succumbed to it. The infection spread quickly to poultry in Hong Kong. At that time a million and half chickens were culled in Hong Kong to keep the virus under control. The virus disappeared for a few years, but resurfaced in 2002 in Hong Kong again. Since then it has killed millions of birds in Asia and many cases of human infections have been reported. The persistence of this H5N1 strain of virus is a great concern for humans. Although the virus does not spread from birds to humans easily, the severity of the infection of H5N1 in humans is frightening. The virus has killed every second person infected by it. These cases were reported in perfectly healthy individuals who had no past history of infections. However the greater concern for the world is the POSSIBILITY THAT THE VIRUS MAY MUTATE (UNDERGO ANTIGENIC SHIFT) AND CREATE A FO
