H5N1 H5N1 Virus Human Health Risks Bird Flu Human Cases H5N5 Transmission Public Health Impact on Wildlife Zoonotic Diseases H5N5 Virus Human Health Impact Impact on Animals Prevention Epidemics Epidemiology H5 Virus Highly Pathogenic Avian Influenza H5N5 Strain Highly Pathogenic Bird Flu Transmission to Humans A(H5N1) Vaccines H7N9 H5N1 Bird Flu Symptoms H3N8 Strain H5 Subtype Public Awareness Prevention Measures Risk Assessment
Health officials point to likely exposure from a backyard poultry flock, with the overall risk to the public considered low.