Kansas Dept. Agriculture: LPAI Bird Flu At Commercial Turkey Farm

Crawford County – Credit Wikipedia

 

# 9864

 

 

Although the subtype isn’t mentioned in the press release, today Kansas authorities have announced the detection of a low pathogenic avian flu at a commercial turkey farm in Crawford county, on the border with western Missouri.

 

Culling has been ordered and the carcasses will be buried on site.

 

Two weeks ago Missouri reported two HPAI outbreaks in Turkeys (see Missouri Dept. Ag. Statement On Avian Flu At Missouri Turkey Farm) while Arkansas to the south reported (HPAI H5N2 Confirmed In Arkansas Turkey Flock) a couple of days later.

 

Low Path (LPAI) strains are viewed as being much less serious than HPAI strains – and often only cause minor illness in birds – but need to be quickly contained because LPAI H7 and H5 viruses have the potential to evolve into highly pathogenic strains.

 

This from the Kansas Department of Agriculture.

 

 

Low Pathogenic Avian Influenza case confirmed in Crawford County

MANHATTAN, Kansas – The Kansas Department of Agriculture was notified Tuesday that samples collected from a commercial poultry flock in Crawford County tested positive for low pathogenic avian influenza (LPAI).

The flock will be depopulated on Thursday by company officials and buried on site.  Working in conjunction with the Kansas Department of Health and Environment, a disposal area has been identified.  This area has been determined to be acceptable for the burial of the livestock carcasses based on data evaluated including groundwater depth, soil type, depth to bedrock and slope of land in the area.  KDHE will monitor the disposal site as part of their normal inspection of the facility.

Because this is LPAI, as opposed to Highly Pathogenic Avian Influenza (HPAI), no quarantine will be issued by KDA. 

“We are dedicated to providing the necessary assistance and precautions to avoid any possible spreading of the disease,” Dr. Bill Brown Kansas Animal Health Commissioner said.  “Even though this is the low path variety, it still requires immediate action and animal health officials are responding.”

Symptoms of avian influenza in poultry include coughing, sneezing, respiratory distress, decreased egg production and sudden death.  

If you suspect your flock has contracted the disease, quarantine the affected animals immediately.  Infected animals must be humanely destroyed and disposed of properly to prevent the disease from spreading. 

Although vaccines are available, they are not commonly used because no vaccine covers all 15 strains of the disease.  Prevention is the best way to combat Avian Influenza.  Keep wild birds away from your home or farm, and stay informed about the health of neighboring animals. 

For more information please check www.agriculture.ks.gov/avianinfluenza

 

APHIS: H5N2 Detected In Backyard Flock In Kansas

 

# 9826

 

Becoming the fourth Midwestern state to do so this month, late yesterday APHIS announced the detection of Highly Pathogenic H5N2 in a backyard flock in Leavenworth, Kansas.  

First, links and excerpts from the APHIS and the Kansas Department of Agriculture, then I’ll return with a bit more.

 

 

USDA Confirms Highly Pathogenic H5N2 Avian Influenza in Backyard Flock in Kansas

CDC considers the risk to people from these HPAI H5 infections in wild birds, backyard flocks and
commercial poultry, to be low.

WASHINGTON, March 13, 2015 -- The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed the presence of highly pathogenic H5N2 avian influenza (HPAI) in a backyard chicken and duck flock in Leavenworth County, Kansas. This is the first finding of HPAI in the Central flyway. CDC considers the risk to people from these HPAI H5 infections in wild birds, backyard flocks and commercial poultry, to be low. No human infections with the virus have been detected at this time.

Samples from the flock, which experienced increased mortality, were tested at the APHIS National Veterinary Services Laboratories in Ames, Iowa. APHIS is working closely with the Kansas Department of Agriculture to respond to the finding. State officials quarantined the affected premises and birds on the property will be depopulated to prevent the spread of the disease.

(Continue . . . )

 

Kansas Department of Agriculture notified of confirmed positive case of Avian Influenza

MANHATTAN, Kansas – The Kansas Department of Agriculture was notified late Friday afternoon that samples collected from a backyard poultry flock containing both chickens and ducks in Leavenworth County returned a presumptive positive result for highly pathogenic avian influenza at the National Veterinary Services Lab.

KDA will be establishing a control zone around the premise.  This case is in addition to the areas of Cherokee and Crawford counties that are under surveillance after a confirmed case of the H5N2 strain of Avian Influenza was found in Jasper County, Missouri near Asbury earlier in the week.

Avian Influenza is a contagious, rapidly spreading viral disease affecting birds. Outbreaks of a strain of avian influenza have occurred in Missouri, Arkansas, Minnesota, Oregon, Washington and Idaho and are not considered to be a threat to public health or the food supply.

Dr. Bill Brown, State Animal Health Commissioner, confirmed that a response team from KDA’s Division of Animal Health and from USDA will be dispatched to the area to conduct surveillance activities and to collect additional sample from flocks within the control zone.  “It is important to know where backyard flocks of poultry exist.  We will be seeking information about the presence of backyard flocks in Leavenworth County.” 

(Continue . . . )

 

It should be noted that while related to the H5N1 virus – which has killed several hundred people around the globe – these particular H5 viruses (H5N2 & H5N8) have not demonstrated a similar ability to infect and sicken humans.

 

For now the CDC is taking a cautious approach to all of of these recently arrived HPAI viruses, and has issued guidance for the testing, and prophylactic treatment of those exposed. 

 

Although migratory birds are viewed as the primary suspects in the spread of these avian viruses, exactly how they managed to infect commercial flocks in California, Minnesota, Missouri, and Arkansas hasn’t been announced. 

 

While it seems probable that migratory birds brought the virus to the Pacific Northwest, the sudden leap 1,000 miles to the east and the movement of the virus from north-to-south across the central states during the winter, have some questioning the role of migratory birds (see CIDRAP  H5N2 shows up on Arkansas turkey farm).

 

Last November – a few weeks before the first North American HPAI H5 outbreaks were reported – in Bird Flu Spread: The Flyway Or The Highway?,  we looked at the often bitter debate over how these viruses spread.  In it,  I wrote:

 

The debate over the role of migratory birds in the spread of avian flu has been a contentious one, with bird enthusiasts pointing to the poorly managed poultry trade as being the root cause, while those in the poultry industry are often quick to blame migratory birds (see Study: The Role Of Migratory Birds In Spreading Bird Flu).

Since I don’t have a bird in this fight, I readily concede that both are probably significant contributing factors in the spread of the virus. I see no reason why they should be mutually exclusive.

 

That HPAI H5 has entered North American wild birds doesn’t seem subject to dispute, as the USDA has a growing list of wild and migratory birds, and poultry detections, since last fall.

 

Whether there is some other mechanism aiding and abetting migratory birds in the spread of these viruses across the country – perhaps through the movement of people, equipment, poultry products, or supplies - has yet to be established.  

 

The USDA continues their epidemiological investigation, and continues to urge that commercial poultry growers increase biosecurity, but as of their latest audio PSA (see Looking Into the Latest High Path AI Cases (audio)), state that no evidence of farm-to-farm spread has been detected.