Titres… ugh. I spend a lot of time answering questions about titres, with little data to go on.

What are titres?

Titres are a measure of antibody levels in the bloodstream. Antibodies are produced by the body in response to infection or vaccination.

What do titres tell us?

Titres indicate whether a specific antibody is

For some reason, I’ve been spending a lot more time lately discussing vaccination, so I figured I’d write about a series of vaccine issues, questions and dogmas (that are often non-evidence-based or just downright wrong).

Age for first rabies vaccine

Here in Canada at least, rabies vaccines are licensed for use in dogs and cats

With any new, changing or inadequately investigated infectious disease, we need to first understand the scope of the problem, including the range of species that can be infected. The ongoing human monkeypox outbreak has raised concern about spillback of monkeypox virus into animals from humans since, we don’t know much about susceptible animal species.


Things have been pretty quite regarding monkeypox in domestic animals lately. Whether that’s because human-to-animal infection is truly rare, and human case numbers are dropping, or whether it’s because there’s not enough surveillance in domestic animals that have been exposed to the virus isn’t clear. I suspect it’s a combination of the two. Our surveillance