
Almost all human diseases originate from other animals and then adapt to human hosts, says University of Guelph agriculture professor David Waltner-Toews, according to the author of The Chickens Fight Back: Pandemic Panics and Deadly Diseases that Jump from Animals to People.People, birds and pigs are easily affected with different strains of virus or influenza. The easiest to transmit by human to human virus is human influenza. It is very possible that humans can also get bird influenza and pig...