An influenza that results in infection located in respiratory tract of humans, domestic and wild birds, has_material_basis_in Influenza A virus, which is transmitted by contact with infected poultry. Five strains of avian influenza A viruses (H5N1, H7N3, H7N2, H7N7 and H9N2) are known to cause human infections. The infection has_symptom fever, has_symptom cough, has_symptom sore throat, has_symptom muscle aches, has_symptom nausea, has_symptom diarrhea, has_symptom vomiting, has_symptom neurologic changes, has_symptom pneumonia, and has_symptom acute respiratory distress. [ url:http://www.cdc.gov/flu/avian/gen-info/avian-flu-humans.htm url:http://www.who.int/mediacentre/factsheets/avian_influenza/en/index.html url:http://www2.merriam-webster.com/cgi-bin/mwmednlm?book=Medical&va=avian%20influenza http://purl.obolibrary.org/obo/ECO_0007637 http://purl.obolibrary.org/obo/ECO_0007643 ]