Worms & Germs Blog

Tag Archives: influenza

Canine Influenza update and fact sheet

Posted in Dogs, Vaccination
The recent H3N2 canine influenza cluster in Ontario is hopefully still contained. Some infected dogs continue to shed the virus, but a good thing about flu is that there’s no long-term carrier state. Dogs will typically shed the virus for a couple of weeks, but then it should be gone. Accordingly, if the affected dogs… Continue Reading

Canine flu update: Ontario

Posted in Dogs
After identification of H3N2 canine influenza in two recently imported dogs in Ontario, testing of a group of in-contact dogs was performed. Five more infected dogs were identified, including both dogs that developed signs of influenza and those that stayed healthy. Infection of these animals was expected since these dogs were in close contact with… Continue Reading

Canine flu vaccination: Canada

Posted in Dogs, Vaccination
Not surprisingly, “should my dog be vaccinated against flu?” has been a very common question over the past few days. Here’s my take on vaccination of Canadian dogs, with the assumption that the recent H3N2 flu cluster in southwestern Ontario has been contained (something that is likely but is still to be determined). Who should… Continue Reading

Canine flu: What are the human health risks?

Posted in Dogs
Now that canine flu has been identified in Ontario, I’ve been inundated with questions, including “what is the risk to people?” It’s often tough getting the right message across, since there are some potential human health risks, but they are very low. The fact that we can’t say “it’s not a concern” sometimes gets taken… Continue Reading

Canine Influenza: Ontario

Posted in Dogs
H3N2 canine influenza has been identified in two dogs in Essex County, Ontario. The dogs were imported from Asia (via the US) in late December and were showing signs of respiratory disease the following day when they were examined by a veterinarian. A small number of dogs that had close contact with the affected dogs… Continue Reading

Influenza from a cat (and no we’re not all going to die)

Posted in Cats
A paper in December’s Emerging Infectious Diseases (Marinova-Petkova et al. 2016) follows up on last year’s outbreak of avian influenza (H7N2) in cats in a New York shelter and one associated human infection (the findings were also summarized in a post from earlier this year). This paper describes investigation of the virus from the infected… Continue Reading

H7N2 Influenza in a New York animal shelter: A recap

Posted in Cats
The 2016 outbreak of H7N2 influenza in cats in a New York shelter, with transmission to one veterinarian, got a lot of attention, including a few posts on our blog. H7N2 influenza is known to have been circulating in birds in the US since at least 1994, and two human infections had been identified (a… Continue Reading

A perfect storm for canine flu

Posted in Dogs, Other diseases
There were several more reports over the weekend in follow up to the canine influenza outbreak at dog shows in Florida early last week.  Unfortunately, but not surprisingly, associated cases were then found in North Carolina, and have now been reported in 11 states, no doubt  from dogs that were at the shows in Florida… Continue Reading

H3N2 Canine Flu in Florida

Posted in Cats, Dogs, Vaccination
The recent H3N2 canine flu outbreak centred around dog shows in Florida has led to the usual round of questions and concerns. How many dogs have been affected? Hard to say. Cases aren’t carefully tracked and it is reasonable to assume that the majority of dogs that developed influenza (especially mild disease) were never diagnosed.… Continue Reading

More avian flu in cats…H5N6 in South Korea

Posted in Birds, Cats
Following on the heels of an H7N2 influenza outbreak in cats (and one person) in New York, H5N6 avian influenza has been found in two dead cats in Pocheon, Gyeonggi province, South Korea. This highly pathogenic avian influenza strain has been active in South Korea since November 2016, resulting in the death or euthanasia of… Continue Reading

More on H7H2 influenza in cats (and now a person)

Posted in Cats
A press release by the New York Department of Health and Mental Hygiene has provided some interesting new information about the recent H7N2 influenza outbreak in cats. This avian influenza strain is causing an ongoing outbreak in cats in shelters in New York, and human surveillance has been underway. Three-hundred fifty (350) people have been screened… Continue Reading

H7N2 influenza in cats, New York

Posted in Cats
Emerging problem, newly recognized issue or oddball infection? Recent identification of H7N2 in cats at a Manhattan animal shelter has raised recurring concerns about animal health, human health and the movement of influenza viruses. As a quick recap, flu viruses are named (in part) based on the genes coding for two important viral proteins, hemagglutinin and… Continue Reading

Canine flu strikes again – Illinois

Posted in Dogs, Vaccination
Canine influenza has once again reared its ugly head in fairly spectacular fashion, this time in Bloomington, IL.  Apparently there have been numerous laboratory-confirmed cases, and also many suspected cases, and likely still more cases that have gone completely unreported.  It’s estimated that “hundreds” of dogs may have been affected already – it’s very difficult… Continue Reading

More Canine H3N2 Influenza in Cats

Posted in Cats, Dogs
Perhaps unsurprisingly, canine H3N2 influenza has been found in a group of cats in the US. Canine H3N2 influenza is the strain that emerged in the US last year. It was likely imported (in a dog) from South Korea, and then spread through many parts of the country. As with H3N8 canine flu, we’ve been… Continue Reading

Ontario canine respiratory disease update

Posted in Dogs
Disease status Things seem to be slowing down. Whether that’s because of a true decrease in disease or “reporting fatigue” is a good question. However, I’m pretty certain that the outbreak is burning itself out in the areas that were most affected. Sporadic reports of sick dogs are still coming in from a few areas, but… Continue Reading

Canine respiratory disease outbreak update

Posted in Dogs
As I’ve written about a couple times over the past few days, we seem to have increased canine respiratory disease activity in a few areas of Ontario. The first reports came from Orangeville (incidentally, the town where I worked as a veterinarian in general practice when I first graduated), based on information provided by an astute… Continue Reading

H3N2 influenza in a cat?

Posted in Cats
In what would be an interesting but not completely surprising twist, there’s a report of H3N2 influenza infection in a cat from a New York city shelter. The report’s pretty limited in detail, and it’s not clear to me how solid the diagnosis is, but it would be interesting if true. It probably doesn’t represent… Continue Reading

Yet another influenza in dogs

Posted in Dogs
This latest flu strain probably isn’t as big a deal as some other influenza viruses found in dogs, but it demonstrates that it’s important to monitor influenza in different species and look for changes. A paper published ahead of print in Emerging Infections Diseases (Lin et al, Dec 2015) describes an H6N1 influenza virus in… Continue Reading

More dog travel issues

Posted in Dogs, Rabies, Vaccination
Importation issues, Part 1 A Facebook post was forwarded to me the other day. It reads “Drove to the airport today to pick up this lovely little girl [puppy] who flew all the way to Montreal from Baku Azerbaijan. Spent the afternoon with her romping around in Westmount Park. She will be up for adoption… Continue Reading

Small flocks, urban chickens and bird flu

Posted in Birds
Three poultry flocks in Ontario have been found to be infected with H5N2 highly pathogenic avian influenza (HPAI).  Under the direction of the Canadian Food Inspection Agency (CFIA), the lead agency when it comes to responding to federally reportable diseases like this, disease control zones have been established around the affected flocks, and movement of… Continue Reading

More on canine H3N2 flu

Posted in Dogs
Not surprisingly, I’ve been inundated with emails and calls about the H3N2 canine influenza outbreak that’s ongoing in the US. How far will it spread? Who knows? It’s always hard to predict what will happen with influenza viruses. The spread of the H3N8 canine flu virus was surprisingly slow and sporadic, and it has yet… Continue Reading

So…how did Asian H3N2 canine flu get here?

Posted in Dogs
There’s no answer to how Asian H3N2 canine flu arrived in North America, but importation of infected dogs seems likely. There seems to be quite a bit of dog movement from Korea to the US, as highlighted in a couple of articles below. There’s no way to know for sure, but well meaning yet unregulated… Continue Reading