Tag: Cornell University College of Veterinary Medicine

K9 Influenza Postscript.

More information for dog owners.

Jim and Janet are good friends here in Merlin and live just a short distance away. Jim is also a Doctor of Veterinary Medicine (DVM) and he emailed me following my post on Saturday about being more aware of dog flu. This is what Jim said:

Hey Paul …..
I saw on your blog that you had already posted info regarding canine influenza.  I don’t know if you needed any more material, but, if you are interested, attached is a client information sheet and a couple maps indicating the spread of the DZ as of 11/15.

That client information sheet explained these important details.

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Canine Influenza H3N2

Authored by: Dr. Mark Rishniw, ACVIM 
VP Client Information Sheets

What is canine influenza?
Influenza in dogs is caused by canine influenza viruses (CIVs). The two main CIVs in circulation internationally are H3N8 and H3N2. Dogs are occasionally infected with human influenza viruses. These viruses are extremely contagious. 

When did the current U.S. outbreak of H3N2 start?
The outbreak began in the Chicago area in March, 2015.

Where have cases been reported?
Geographic locations expanded in the months after the initial outbreak. To see the latest news on where it has been seen, see regularly updated information from Cornell University College of Veterinary Medicine.

What strain of influenza caused this outbreak?
The 2004 outbreak, which was caused by the H3N8 strain, has remained circulating in the U.S. dog population, causing sporadic disease since that time. However, the current outbreak has been identified as a H3N2 strain of influenza A virus. This strain is closely related to an Asian strain that is circulating in China and South Korea.

Will the influenza vaccines against the H3N8 (old) strain protect against the H3N2 strain involved in the current outbreak?
Probably not. The current commercially available vaccines are not likely cross-protective against the H3N2 strain involved in the current outbreak.

What about the new H3N2 vaccines?
These should reduce the clinical signs if a dog becomes infected. They will also decrease the time that a dog remains “infective” to other dogs. They will not protect against the old (H3N8) strain.

Should I vaccinate my dog with the new vaccine?
That’s a decision for you and your veterinarian. Any place where dogs unknown to you congregate in large numbers confers an increased risk to your dog, such as boarding kennels, shows, traveling, going to dog parks, training classes, and performance competitions. Dogs that have diseases or treatments that suppress the immune system (e.g. corticosteroids, cancer etc.) are at higher risk. The virus does not survive well in the environment, so there is little risk of infection if a dog is mostly at home.

Prevention
For dog owners living in the affected areas, the best prevention is to minimize contact with other dogs. Consider avoiding places such as dog parks, dog day care, grooming facilities, boarding, training classes, and group gatherings. Walking your dog should be fine, but avoid socializing with other dogs.

If your dog in the affected areas has respiratory signs, such as coughing, hacking, gagging or difficulty breathing, call your veterinarian before your appointment to let them know your dog has respiratory signs so that they can take appropriate precautions to minimize the possibility of contaminating the facility. When you get to the clinic, leave your dog in the car and have the veterinary team meet you at the car so they can figure out how to best handle the dog.

What are signs of infection?
Clinical signs range from subclinical infection, or mild fever and malaise to severe, life-threatening pneumonia; however, most clinically affected dogs have signs that are typical of kennel cough. Of approximately 1000 dogs recognized to be infected in the Chicago area, about five have died from the infection. Clinically, influenza infection is not distinguishable from kennel cough caused by other pathogens, such as Bordetella bronchiseptica.

How is canine influenza diagnosed?
Tests that broadly detect influenza A virus (e.g., broadly targeted influenza A real time RT-PCR) should effectively detect both H3N8 and H3N2. However, tests targeted directly at H3N8 are unlikely to identify H3N2 infection because of limited cross-reaction between H3N8 and H3N2 antibodies.

Can other animals or people become infected with this strain?
Currently, there is no evidence that people can contract this virus. However, studies in Asia have shown limited transmission to cats. Whether this can happen with the strain currently involved in the U.S. outbreak is unknown. In Asia, the H3N2 strain that infected cats (and caused disease) was considered to be of avian origin. Current information about the U.S. H3N2 strain suggests that it might be of porcine origin.

How are the dogs treated?
The mild form requires minimal supportive treatment, as is the case with ANY mild upper-respiratory infection (kennel cough). Cough suppresants may be provided. Antibiotic therapy is restricted to high-risk patients. With the severe form, treatment is largely supportive. A rapid onset of disease (4-6 hours) is matched by an equally rapid improvement in clinical signs if treatment is instigated. Fluid support and broad-spectrum antimicrobials that cover both gram-positive and gram-negative bacteria are generally required.


Copyright 2015 – 2016 by the Veterinary Information Network, Inc. All rights reserved.

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Jim also included in his email these following maps in pdf format that I was unable to include in this post. Luckily I also found them as images originally published on the Dog Influenza website.

MAH_CIV-Map_2015_Overall_H3N2oooo

MAH_CIV-Map_2015_Overall_H3N8

Please treat this post as general information. If you have any doubt or queries about the health of your pet animals please see a vet without delay.

Dog treats – possible harm for your dog!

This important information came to hand an hour ago.

Stephanie from our local Payson Humane Society Thrift Shop sent me and Jean an email a short while ago.  While the potential issue goes back to 2007 that is no reason not to keep this in mind when it comes to what commercial treats you give your dog.  Indeed, the US FDA updated their recall information only last November.

Please circulate this to all dog owners that you know.

Here’s a full copy of the release made by the American Veterinary Medical Association,

Jerky treats from China could be causing illness in pets

The AVMA staff has been in communication with veterinarians who believe certain brands of jerky treats from China could be causing illness in pets. Signs of illness have included vomiting, lethargy, and anorexia.

The Food and Drug Administration is aware of consumer complaints relevant to chicken jerky for dogs. Laura Alvey, director of the communications staff at the FDA Center for Veterinary Medicine, said the agency is actively investigating the situation.

Alvey said the FDA has analyzed products for multiple microbiologic and chemical contaminants, but the agency had not detected any contaminants as of Sept. 14.

Wal-Mart pulled a type of chicken jerky for pets off store shelves July 26 after receiving complaints about the product, manufactured by both Import-Pingyang Pet Product Co. and Shanghai Bestro Trading. A laboratory that tested the jerky product reported finding low concentrations of melamine, one of the contaminants that led to massive recalls of pet food earlier this year.

Alvey said the FDA has reviewed the laboratory report, which found 20 ppm of melamine in one sample. The agency has not been able to verify the finding. Alvey added that the FDA would not expect the low concentration of melamine to result in any illness.

Dr. Richard Goldstein, an associate professor of small animal medicine at Cornell University College of Veterinary Medicine, has been collecting data on cases of pets that became ill after ingesting jerky treats from China. He is the primary author of an informational document available on the Web site of the American College of Veterinary Internal Medicine, www.acvim.org.

According to the document, ACVIM diplomates who work in nephrology and urology became aware of an unusual number of dogs with similar presenting complaints and clinicopathologic testing results in association with the ingestion of various brands of jerky treats, mostly chicken jerky. The dogs are typically small and have a history of vomiting, lethargy, and anorexia.

Blood chemistry in many cases has revealed hypokalemia and a mild increase in liver enzymes. Blood gas analysis indicates acidosis. Urinalysis has consistently shown glucosuria and granular casts. The findings suggest an acquired Fanconi syndrome, according to ACVIM diplomates, and Fanconi screens on urine have been positive.

The ACVIM document recommends treatment consisting of supportive care, electrolyte supplementation, and blood gas monitoring. These cases appear to warrant liberal potassium supplementation. In some cases, veterinarians should consider long-term bicarbonate supplementation.

Most of the dogs have recovered from their acute disease and have not required long-term treatment. Dr. Goldstein at Cornell asks veterinarians who can contribute data on these cases to e-mail him at rg225@cornell.edu. The AVMA will provide updates about the situation at www.avma.org as new information becomes available.

Veterinarians who see any illnesses that they suspect might relate to a pet food should contact an FDA consumer complaint coordinator and the manufacturer or retailer. A list of phone numbers for FDA complaint coordinators in each state is available at www.fda.gov/opacom/backgrounders/complain.html.

As I mentioned, the US. Food and Drug Administration website updated their recall information on November 15th, 2011.  The link is here, from which is reproduced,

List of recalls for Pet Food Products from Jerky Treats

Information current as of noon November 15, 2011
1065 entries in list

Recalls & Withdrawals for Animal & Veterinary Products
Melamine Pet Food Recall of 2007: Main Page

The recalls on this list are primarily Class I. Definitions of Class I, II, and III recalls. Additional information about how recalls are conducted can be found at FDA 101: Product Recalls – From First Alert to Effectiveness Checks.

Note: This compiled list represents all pet food recalled since March 2007. If and when new information is received, this list will be updated. The “Information Current as of” date provided above indicates when this Web page was updated; it does not indicate the date when the pet food recalls listed below were initiated. Once listed, each of the recalled pet food products remains listed, even if there are no new recalls associated with that product. Although we have taken care to make sure the information is accurate, if we learn that any information is not accurate we will revise the list as soon as possible. For initiation dates of specific recalls, click on the brand name and then product description links that appear on these pages. For recalls that occurred before September 1, 2008, a date range might appear in the initiation date field. The date range indicates the timeframe within which multiple recalls of this product were initiated. For recalls that occur September 1, 2008 and after, the actual initiation date of each recall event is provided for each product. If a new recall is initiated for a product that had previously been recalled before September 1, 2008, the food product will be listed again, with the new recall initiation date. If a new recall is initiated for a product that had previously been recalled after September, 1, 2008, the initiation date of the new recall event will be added to the previous date listed.

The recall number is V-095-2007  The Trade Name is Jerky Treats

The Product Description is: Jerky Treats Beef Flavor Dog Snacks. The product is sold in 3.75 oz bags and shipped in cases containing 12 bags; sold in 7.5 oz bags shipped in cases containing 6 bags & 12 bags; sold in 11.25 oz bags shipped in cases containing 8 bags; sold in 15 oz bags (which is buy one get one free of the 7.5 oz size) shipped in cases containing 12 bags; sold in 170 g bags shipped in cases containing 12 bags (Canadian only); and sold in 567 g canisters shipped in cases containing 8 canisters (Canadian only).

Finally, I reproduce an item on the Animal Health Foundation website about Treats for Dogs.

Treats for Dogs are Potentially Dangerous

Check the label for country of origin, and be observant if you give your dog chicken jerky treats. The American Veterinary Medical Association was notified last week by the Canadian VMA that several Canadian veterinarians have seen dogs with a condition that resembles Fanconi syndrome, and it may be associated with the consumption of chicken jerky treats manufactured in China. Similar incidents were reported in the United States in 2007 and investigated by the U.S. Food and Drug Administration, which issued a further warning in 2008.

It’s unknown if the problem is limited to Canada. The AVMA reports that it has not received any recent reports from U.S. veterinarians about pets with illness that may be related to chicken jerky treats, and there have been no recalls of any chicken jerky treat products associated with the Canadian complaints. Brand names of the products involved are not available.

Fanconi syndrome affects the kidney tubes and can be heritable or acquired. The heritable form is rare and usually is seen only in certain breeds, including basenjis and Norwegian elkhounds. The acquired form can be caused by heavy metal poisoning or certain chemicals. Dogs affected with the acquired syndrome usually have signs that include vomiting, listlessness and lack of appetite. According to the FDA’s 2008 report, extensive chemical and microbial testing did not turn up any contaminant or a definitive cause for the reported illness. Most dogs recover, but some reports to the FDA involved dogs that died.

After checking the information on the Veterinary Information Network, Lake Forest veterinarian Scott Weldy of Serrano Animal and Bird Hospital said that so far, the reports have been anecdotal, with no evidence tying the problems to the chicken jerky treats.

“Right now they’re basically not blaming anything,” he says. “They’re saying it might be from chicken treats, but they don’t know yet.”

According to the comments on VIN, Weldy says, veterinarians are reporting cases infrequently, “maybe one case every week or two or three.” Some cases have a reasonably suspicious history.

“Right now it is speculation,” he says. “Everybody wants to jump on a cause for everything that happens, and they’ll look for some common link. Cheap treats and cheap foods are by far more popular than more expensive things because people are trying to save money. A lot more people are using cheaper products or are being sold products that are marketed better, so they’re more common in the market. Sometimes those get blamed first when they have nothing to do with anything.”

Nonetheless, it doesn’t hurt to be cautious.

“I would be skeptical to put a cause-and-effect relationship on the chicken treats right now, but I also wouldn’t feed my dog a chicken jerky treat right now,” he says. “It’s an easy thing to avoid.”

Limit the amount of jerky treats you give to a small dog. If you give your dog chicken jerky treats, pay attention if the dog’s appetite or activity level decreases, if it vomits or has diarrhea, or starts to drink more water and urinate more frequently. Signs can occur within hours to days of giving the treats.

Stop giving the jerky if your dog shows any of these signs, and take him to the veterinarian if the signs are severe or continue for more than a day. Blood tests should be run to check for kidney failure or an increase in liver enzymes and urine tests to check for increased glucose levels. Treatment involves supportive care, such as fluids and electrolyte supplements.