February 17, 2023, Asuncion, Paraguay: A view of the words ''avian influenza'' is displayed on a smartphone in front of visual representation of test tubes labeled ''bird flu.'' ''Avian influenza or bird flu refers to the disease caused by infection with avian (bird) influenza (flu) type A viruses. These viruses naturally spread among wild aquatic birds worldwide and can infect domestic poultry and
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other bird and animal species. Bird flu viruses do not normally infect humans. However, sporadic human infections with bird flu viruses have occurred,'' according to the U.S. Centers for Disease Control and Prevention
Fecha: 17/02/2023.
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