Dog to dog transmission of a novel influenza virus (H5N2) isolated from a canine

[tetano]

Vet Microbiol. 2012 Aug 3. [Epub ahead of print]
Dog to dog transmission of a novel influenza virus (H5N2) isolated from a canine.
Song QQ, Zhang FX, Liu JJ, Ling ZS, Zhu YL, Jiang SJ, Xie ZJ.
Source

Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Taian, Shandong 271018, China; College of Veterinary Medicine, Shandong Agricultural University, Taian, Shandong 271018, China.
Abstract

In 2009, an influenza virus (IV), A/canine/Shandong/JT01/2009 (CA/SD/JT01/09), was isolated from the dog exhibiting respiratory signs in China, and was a novel H5N2. Intraspecies transmission of the virus in dog population had thus far remained unclear. To determine whether the novel H5N2 was transmitted among dogs, we conducted contact exposure and inoculation experiments. Susceptible dogs were housed in the room which the novel H5N2 infected dogs were housed in. As a result, the direct contact resulted in intraspecies transmission. Most of the infected dogs and the sentinel animals developed mild respiratory syndrome, including transient increased body temperatures, conjunctivitis, sneezing, nasal discharge and mild coughing, virus shedding and seroconversion, but no fatal disease. These data suggest that dogs may play a role in transmission and spread of influenza virus.

Copyright ? 2012 Elsevier B.V. All rights reserved.

PMID:
22906528
[PubMed - as supplied by publisher]

http://www.ncbi.nlm.nih.gov/pubmed/22906528

 

[Laidback Al]

Re: How Dangerous is Bird Flu (H5N1) to Global Public Health? Part 2

Re: How Dangerous is Bird Flu (H5N1) to Global Public Health? Part 2

Zoonotic Transmission of Influenza Viruses

In an article to be published in Veterinary Microbiology entitled ?Dog to dog transmission of a novel influenza virus (H5N2) isolated from a canine,? researchers in China demonstrated that a novel H5N2 influenza virus can be transmitted by direct contact between dogs (link to abstract).

It is worth remembering that the only recent HPAI outbreak in North America was novel H5N2 in a poultry flock in Texas in 2004. No human cases were associated with this outbreak (link). However, possible poultry-to-human infection of H5N2 occurred in Japan in 2005 and was reported in 2008 in article in the Journal of Epidemiology (full text available here).

The recent outbreak of human cases of novel H3N2v in the USA has been attributed to swine-to-human transmission although there is now some evidence for limited human-to-human transmission of H3N2v (link).

It is a sobering reminder of how little we understand about zoonotic transmission of influenza viruses.

Credits to tetano for abstract link