The chance of human-to-human transmission of H5N1 is “very small,” Chowdhury states. But when it ended up to occur in the sustained way, it could rock the world in a method not noticed For the reason that 1918 Spanish Flu. one) These vaccines are not tested on actual men and https://www.dailypioneer.com/2013/sunday-edition/2013-04-06-1283.html