Influenza Virus A (H1N1) in Giant Anteaters (Myrmecophaga tridactyla)

Influenza (H1N1) is a subtype of influenza virus which is the most common cause of Human influenza. This virus was originally called swine flu because of the genes that are similar to flu viruses in pigs. Like other flu strains, the H1N1 flu virus is passed from person to person. H1N1 causes flu-like symptoms including, sore throat, fever, fatigue, and body aches.

Influenza is known to cross species line into mammalian species. Influenza virus is a pathogen that not only affects its avian reservoir but also mammalian species such as swine, horses, cats, dogs, and humans. In 2007, researchers documented a respiratory disease occurrence in a group of giant anteaters- the new host- at the Nashville zoo. Isolates from two affected animals were identified as a type A influenza virus related to human influenza subtype H1N1. This host could potentially impact human population as possible sources of zoonotic spread of influenza. Emergence of viruses in new host increases people’s concern. However, the good news is that the H1N1 vaccine has been developed now and is available for everyone. CDC recommends influenza vaccination as the most important step in protection the flu.

Sally Nofs, Mohamed Abd-Eldaim, Kathy V. Thomas, David Toplon, Dawn Rouse, and Melissa Kennedy “ Influenza Virus A (H1N1) in the Giant Anteaters ( Myrmecophaga tridactyla).” Emerging Infectious Disease. Volume 15, Number 7- July 2009


“2009 H1N1 Flu” Centers for Disease Control and Prevention. May 7, 2010