In my last post I used a photo of an old (positive) test result for COVID (this is also an old photo of my sweet baby, hence the grainy appearance) and I noticed it included Influenza A and B as possible results as well, which got me thinking about the flu and wondering how much people know what the flu even is. The question also ties into vaccines and how experts decide on which “strain” to use – and do people even know what they mean by strain?!

Ok, that’s a LOT to cover, so I’ll try to keep it all simple. First, let’s define what zoonosis is – this is a hot topic for One Health.