Avian influenza A(H5) affects birds and mammals. This disease can spread to humans who come into contact with infected animals. Many countries have reported outbreaks, including Argentina, Brazil, and the United States of America.

The disease has caused problems for a long time, with outbreaks happening regularly since 1996. It has affected many different species of birds and mammals. Further information about the spread of avian influenza A(H5) is available, including details about the countries and species affected.