Outbreaks of new canine influenza H3N2 continue in the USA

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Brown and white bull type dog on bed with orange background

Outbreaks of new canine influenza H3N2 continue in the USA First described in dogs in the USA in April this year, influenza virus H3N2 continues to spread. The virus is believed to have spread to dogs from birds, and was thought to have been introduced to the USA from Asia, where it is circulating more widely, possibly through the importation of rescued dogs from Asian meat markets. This is the second influenza virus to infect dogs, joining H3N8, which itself was first introduced into the dog population from horses around 2004. Vaccines are available to reduce the impact of H3N8 in dogs. Neither virus is believed to be currently circulating in the UK. These cases confirm the importance of dog migration as a potential route to spread viruses globally - and as dogs become more mobile, these risks will only increase. More information is available here.

 

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