'Sentencing their dog to death': how the anti-vax movement spread to pets

There has been a spike in people refusing to vaccinate pets against deadly diseases, including some that can infect humans

Sam Kovac can't say for sure what prompted it, but in the past few weeks the Sydney veterinarian has been faced with the same alarming, beguiling question over and over: "Will this vaccination give my dog autism?"

"It's actually ridiculous. I mean you hear chatter over the years, but just in these last few weeks it's really, really ramped up," he tells Guardian Australia.