Susceptibility of turkeys to pandemic-H1N1 virus by reproductive tract insemination

[Pathfinder]

Susceptibility of turkeys to pandemic-H1N1 virus by reproductive tract insemination

The current pandemic influenza A H1N1 2009 (pH1N1) was first recognized in humans with acute respiratory diseases in April 2009 in Mexico, in swine in Canada in June, 2009 with respiratory disease, and in turkeys in Chile in June 2009 with a severe drop in egg production. Several experimental studies attempted to reproduce the disease in turkeys, but failed to produce respiratory infection in turkeys using standard inoculation routes.

We demonstrated that pH1N1 virus can infect the reproductive tract of turkey hens after experimental intrauterine inoculation, causing decreased egg production. This route of exposure is realistic in modern turkey production because turkey hens are handled once a week for intrauterine insemination in order to produce fertile eggs.

This understanding of disease exposure provides an improved understanding of the pathogenesis of the virus and can advance poultry husbandry to prevent disease outbreaks.

Author: Mary Pantin-JackwoodJamie WasilenkoErica SpackmanDavid SuarezDavid Swayne
Credits/Source: Virology Journal 2010, 7:27

http://7thspace.com/headlines/333730...emination.html

[gsgs]

Re: Susceptibility of turkeys to pandemic-H1N1 virus by reproductive tract insemination

interesting.
Turkeys had been occasionally infected by swine viruses,
are there people(vets ?) going to swine farms, being contaminated,
and then handling turkey hens for intrauterine insemination ?

[mixin]

Re: Susceptibility of turkeys to pandemic-H1N1 virus by reproductive tract insemination

Most vets are very careful about carrying diseases from one farm to another. Mine used to change his boots before going to my barn and sanitize his hands when he got back in his truck.

Large commercial operations should have even better biosecurity.

[Sally Furniss]

Re: Susceptibility of turkeys to pandemic-H1N1 virus by reproductive tract insemination

Short report

Susceptibility of turkeys to pandemic-H1N1 virus by reproductive tract insemination

Mary Pantin-Jackwood, Jamie L Wasilenko, Erica Spackman, David L Suarez, David E Swayne

Virology Journal 2010, 7:27 (3 February 2010)

[Abstract] [Provisional PDF]

[gsgs]

Re: Susceptibility of turkeys to pandemic-H1N1 virus by reproductive tract insemination

my summary:

failure to infect turkeys intranasally ,intraocularly
intracloacally --> mild diarrhea but continue laying eggs
intrauterine --> reduced laying of eggs

> possibly the intrauterine inoculation and infection resulted in
> changes in the virus that allowed subsequent respiratory infection

doesn't sound likely to me. There should be other ways how they were infected

what about food,water ? Why wasn't that tested ?

[Pathfinder]

Re: Susceptibility of turkeys to pandemic-H1N1 virus by reproductive tract insemination

A few weeks after the posting of an article concerning a study showing poultry resistant to H1N1, the virus was found in turkeys in Chile.

And a few weeks after the discovery of the infection, Chile destroyed 90 000 turkey eggs.

Study shows poultry resistant to 2009 H1N1
Release Date: Monday, July 27, 2009
http://www.flutrackers.com/forum/sho...d.php?t=120556


Treyfish

Chile destroys 90K turkey eggs over swine flu, says virus' spread among the birds contained
By Associated Press 9:41 p.m. EDT, September 3, 2009

http://www.flutrackers.com/forum/showthread.php?t=123958