Worms & Germs Blog

Tag Archives: influenza

Canine influenza disinfection

Posted in Dogs
I’m lazy so I’ll use the blog to answer a question that I’m getting a few times a day.  Today’s question: how to disinfect a veterinary clinic if there is a concern about canine influenza? The good news is that influenza viruses are pretty wimpy. They’re enveloped viruses, meaning they are covered by a fragile fatty… Continue Reading

Canine influenza update: US and Canada, March 13

Posted in Dogs
United States (data courtesy of IDEXX Laboratories) Canine flu continues to cause problems in the US, particularly the west coast. Northern California (471 cases) and Nevada (207 cases) are the hotbeds. As ever, since these data are from diagnostic laboratory submissions, they probably represent the minority of cases (since most dogs with respiratory tract disease… Continue Reading

Ontario canine flu update: March 10

Posted in Dogs
Active canine influenza cases are still known to be present in two regions in Ontario. Muskoka A small number of dogs from the initial cluster of cases in the Orillia/Bracebridge/Gravenhurst region are still shedding the virus, as expected given this virus can be shed by some dogs for a few weeks. The dogs that made… Continue Reading

Ontario canine influenza update

Posted in Dogs, Vaccination
Canine influenza continues to cause problems in Ontario. The central Ontario (Bracebridge, Gravenhurst, Orillia) clusters continue to be monitored, with new positives that were expected based on known contact with infected dogs. Whether these clusters have been contained (or are containable) remains to be seen. Testing and contact tracing continues. As mentioned previously, there was… Continue Reading

Canine flu update: Ontario, Canada

Posted in Dogs
The third cluster of canine flu in Ontario is a problem. While the first two, in the Windsor-Essex area, were relatively small and have been contained, the recent, ongoing central Ontario cluster is larger and more widespread. There are over 20 confirmed cases to date. However, it is very likely that the actual number is… Continue Reading

Canine influenza in Canada: New cluster

Posted in Dogs
While we had hoped that control of the two recent clusters of H3N2 canine influenza in Windsor-Essex, Ontario, meant that the province was again free of that virus, another cluster of infections has been identified, this time in Orillia, Ontario. Investigation is ongoing so the number of infected dogs is currently unclear, but as always,… Continue Reading

US canine flu update

Posted in Dogs
The table below has the latest H3N2 canine influenza numbers from IDEXX Laboratories. Some of the highlights include: Numbers continue to increase. Northern California and Nevada are the hotbeds, with northern CA cases increasing to 343 and Nevada 151. As always, these are just the tested cases, and they presumably represent a small minority of… Continue Reading

Canine flu outbreak update: US

Posted in Dogs
While we have hopefully been able to contain our two recent H3N2 canine influenza clusters in Canada (more on that later), this virus continues to spread in some parts of the US, particularly Northern California and Nevada. Since the last update from IDEXX Laboratories on February 2nd, they have identified another 164 cases in the… Continue Reading

Canine influenza update: Ontario

Posted in Dogs
Another case of canine influenza has been identified in Windsor-Essex, Ontario. Investigation of the source is underway and measures are in place to try to contain the virus. As with the other recent cluster of H3N2 canine influenza cases in that region, there is concern about entry of this virus into a naive canine population… Continue Reading

US canine flu update

Posted in Dogs
Canine flu has been a hot topic around here, but it’s a bigger deal in the US where the range of the disease is much larger. IDEXX Laboratories has released an update on their canine flu testing results. California has been getting a lot of attention over the past couple of weeks, but extensive flu… Continue Reading

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