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Anti-vax pet parents put animals at risk, study shows. Why experts say you shouldn't skip your dog's shots. – CBS News

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The impact of anti-vaccine activists is spreading beyond humans. A recent study found many dog owners are skeptical of vaccinating their pets — even though that leaves animals and humans at risk.
The study, led by a researcher from Boston University’s School of Public Health and published in the journal Vaccine, found a sizable minority of dog owners have some hesitancy toward canine vaccines. Over one-third (37%) said they believed the shots were unsafe; 22% thought they were ineffective; and 30% thought they were unnecessary. Overall, 53% of dog owners endorsed at least one of these three misconceptions.
“My co-authors and I were stunned by how prevalent this phenomenon is,” lead author Dr. Matt Motta told CBS News.
Motta says an unvaccinated pet is a danger not just to other animals but also to the humans around them. 
“If there are more unvaccinated dogs out there, the risk of disease transmission grows,” Motta said. 
While almost all states require rabies vaccinations, there are several other shots that veterinarians recommend for dogs.
“Obviously, if you get rabies, if you don’t get treated right away … you die,” says Dr. Todd Calsyn, a veterinarian a Laurel Pet Hospital in California. “Parvo [canine parvovirus] and distemper, for sure, can be fatal.”
According to the American Pet Product Association, about 65 million households in the U.S. have at least one dog.
For California resident Sinjin Chun, vaccines keep him confident that his dog Koby will stay safe while playing with other pets at the beach.
“I think it’s pretty necessary,” he said of vaccinating pets. “Dogs are just a lot dirtier than we are and they can pick up a lot of different things and if they’re spreading those things around, it’s not good.”
The study also found that some common vaccine misinformation has been projected onto pets.
“Nearly two-fifths of dog owners believe that routine vaccines administered to dogs, can cause them to develop autism, which is a fundamentally human diagnosis, not something that we observe in canine populations,” Motta says.
This is no evidence vaccines cause autism in humans or animals. 
Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper’s wellness vertical. She now covers breaking and trending news for CBS News’ HealthWatch.
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