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New strain of Canine Distemper found in Wild Animals

New strain of Canine Distemper found in Wild Animals

A distinct strain of canine distemper virus, which is a widespread virus of importance to wildlife and domesticated dogs, has been identified in wild animals in New Hampshire and Vermont, according to pathologists with the New Hampshire Veterinary Diagnostic Lab at the University of New Hampshire. No virus in this distinct subgroup of canine distemper virus has yet been reported in a domesticated dog.

"A distinct strain of canine distemper virus is circulating in multiple wildlife species in two contiguous states in Northern New England," said Dr. David Needle, Senior veterinary Pathologist and Assistant Clinical Professor. "This strain is significantly distinct from the vaccine strains. A member of genus Morbillivirus that includes measles, canine distemper virus is highly contagious and causes severe disease in infected animals."

The new strain of canine distemper virus was identified by UNH pathologists in collaboration with colleagues at Cornell University, University of Georgia, Northeast Wildlife Disease Cooperative, N.H. Fish and Game, and Vermont Fish and Game. Over a one-year period, pathologists diagnosed canine distemper virus infection in eight largely carnivorous mammals in southeastern New Hampshire and north central Vermont. The animals included three fishers, two gray foxes, one skunk, one raccoon, and one mink.

"This can and may already be having an impact on the population of wild mesocarnivores in New Hampshire and New England," said Needle. "These animals are an integral part of the varied ecosystems of wild New Hampshire and New England, filling important niches in predator-prey relationships and pest control. Any decrease in wildlife populations is a loss to the rich wild diversity. The affected species also are furbearing mammals that serve as part of the cultural heritage of the northern sportsman."

Pathologists found all animals were infected with a distinct strain of the virus that had been identified only in a single raccoon in Rhode Island in 2004, which was not described in any publication. The eight animal cases also represent the only reports of any canine distemper virus isolated from New Hampshire and Vermont in the GenBank database/.

Read more by clicking on the link below:

Infection of eight mesocarnivores in New Hampshire and Vermont with a distinct clade of canine distemper virus in 2016–2017

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