A couple of days ago, there was a ProMed request for information following a report of a large number of dead cats in Poland. The cats were reported to have had respiratory and neurological disease, so my thought process went to “that fits with avian flu spillover,” then “but that large
Cats
At What Age Should We Vaccinate Puppies and Kittens Against Rabies?
(TL:DR… check out the TikTok version at the bottom)
When I was a newly graduated veterinarian in general practice, I gave puppies and kittens their first rabies vaccine at 16 weeks of age. That was the standard at the clinic and a common practice elsewhere. Now, if I ask audiences of veterinarians when they vaccinated…
Changes to Ontario Rabies Rules
There’s nothing too earth-shattering here, but a few useful changes pertaining to rabies regulations are coming to Ontario as of July 1, 2023.
- Medical officers of health (MOHs) will have the ability to require rabies testing of animals that have died or are euthanized during their 10 day observation period after they’ve bitten someone.
Rabies Recap, US 2021
As per usual, the annual US rabies state-of-the-union has been published in the Journal of the American Veterinary Medical Association (Ma et al. 2023). It’s the same general information every year, but always a good reminder of the ongoing challenges with rabies here in North America.
Here are some highlights from the animal-related…
H5N1 Avian Flu and Animal Shelters
As the unprecedented global H5N1 avian flu outbreak continues (with no real end in sight), and as we get the spring mix of migrating birds, mingling bird populations, more active wildlife and a pending crop of baby wild critters, concerns about spillover infections from birds to mammals are on the rise.
The current H5N1 influenza…
H5N1 Avian Flu in Cats

The other day, I said that finding H5N1 avian flu in dogs was unsurprising. That also applies (probably even more so) to cats. We’ve known for years that cats are susceptible to H5N1, and since some cats spend a lot of time unsupervised outside and interact with (and eat) birds, they have lots of…
Sharing Multidrug-Resistant Bacteria Between People and Pets… Is There a Concern?

An abstract in the upcoming European Conference on Clinical Microbiology and Infectious Diseases (ECCMID) has gotten a fair bit of press and led to a lot of questions because of some sensational headlines. I’ll hopefully be able to check out all the details at ECCMID (I’ll be there for the Global Leaders Group on AMR…
Staph felis From a Cat to Its Owner
I doubt you’ll be shocked to hear that the normal host of Staphylococcus felis is cats. It’s a bacterium that can often be found in healthy cats and periodically causes disease in cats (e.g. urinary tract infections). Overall, though, it’s a pretty innocuous bug. Human health risks related to S. felis haven’t been well investigated…
H5N1 Avian Influenza in a Cat, France

As the current (and unprecedented) H5N1 avian flu outbreak continues, there’s the ongoing threat of transmission to other species. The extent of spread to mammals is hard to say since it’s hard to know how many wild mammals have been infected. However, we know that an impressive range of species has been infected. Spread to…
Fish Antibiotic Diversion
I’ve written (ranted?) about this before – namely the misuse of antimicrobials intended for treatment of aquarium fish in other species. Usually such posts are followed by a deluge of nasty emails along with a bunch of curious requests for links to fish antibiotic sellers (8% kickback available!).
Another sponsorship request came in this morning…