Bird Flu and Its Global Economic Consequences on Poultry Farming Bird flu, also known as avian influenza, is a disease caused by influenza viruses that normally infect birds and other animals. The highly pathogenic H5N1 strain can infect humans who have close contact with infected poultry or surfaces that are contaminated with secretions and excretions from infected birds. Get More Insights On Global Bird Flu https://articlescad.com/tracking-bird-flu-how-surveillance-and-research-are-helping-fight-the-disease-55446.html