The question has been circulating for months, can dogs and cats catch the H1N1 flu? While no one could say for sure, infectious disease experts felt that dogs and cats were not as susceptible as humans, pigs, and then later turkeys and ferrets.
Today, the answer is different: It has been confirmed that a cat has caught the H1N1 virus from humans. The Iowa Department of Public Health as reported that a cat became ill with H1N1 virus after 3 members of the family became ill with influenza-like symptoms.
"[A] 13-year-old indoor cat in Iowa was brought to the Lloyd Veterinary Medical Center at Iowa State University's College of Veterinary Medicine, where it tested positive for the H1N1 virus. The diagnosis is the culmination of collaborative efforts between IDPH, Iowa State University College of Veterinary Medicine, Center for Advanced Host Defenses, Immunobiotics and Translational Comparative Medicine, USDA, and IDALS Animal Industry Bureau."
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From the AVMA: "Until recently, we had no reason to believe pets could be infected with the 2009 H1N1 virus because it is very uncommon for flu viruses to jump between species. However, on October 9, 2009, a USDA laboratory confirmed 2009/H1N1 infection in a ferret."