The probability of human-to-human transmission of H5N1 is “extremely small,” Chowdhury states. However, if it have been to happen inside of a sustained method, it could rock the world in a way not viewed Because the 1918 Spanish Flu. 5 to 7. For H5N1 among birds, it's close to one https://www.dailypioneer.com/uploads/2019/epaper/september/lucknow-english-edition-2019-09-25.pdf