A recent report from Hong Kong revealed a dog living with a novel coronavirus infection (Covid-19) patient had tested “weakly positive” for SARS-CoV-19, sending pet parents panicking for pet-sized facemasks. Since that news broke, veterinarians around the world have been inundated with calls, texts, and social media questions about whether or not dogs or cats can get coronavirus or spread it to humans. The science is pretty clear: It’s highly unlikely that your pet can get COVID-19 or spread it to people. While I remain completely comfortable cuddling with my pets, there remains some concern and cause for general precautions. But first, a little background on coronaviruses.
Veterinarians are more familiar with coronaviruses than most human physicians. While the first coronavirus was identified in 1937 in poultry, it wasn’t until the mid-1960s that the first human coronavirus was discovered. There are now over 100 documented animal coronaviruses, yet only seven are known to infect humans. Most dog owners are familiar with a form of coronavirus in dogs that causes mild diarrhea and a more serious variant in cats that may lead to Feline Infectious Peritonitis (FIP). Other common coronavirus diseases veterinarians face include Bovine coronavirus, Transmissible Gastroenteritis Virus (TGEV), Porcine Epidemic Diarrhea Virus (PEDV), and Avian infectious bronchitis.
You can continue to cuddle with your pup
You Probably Can't get Coronavirus from you Pet
The coronavirus that causes the latest human epidemic, SARS-CoV-19, most likely originated in bats before mutating to infect other animals or humans. Besides being the only mammal that can fly, bats have a unique physiology that allows many types of viruses to live and reproduce in their bodies without causing illness. This makes bats a perfect petri dish for mammalian viral evolution. We believe many serious human viruses such as Ebola or the Nipah virus began in bats, mutated to infect another animal, and eventually jumped to people. Let’s get back to coronavirus in pets.
In general terms, viruses are species-specific. That means the novel coronavirus we’re dealing with now is specific to humans, not other animals unless it mutates. So how did the Hong Kong dog test positive? Most likely it was the result of virus in the environment that ended up on the lining of its mucus membranes. In other words, the humans it lived with were shedding the virus and the dog was unlucky enough to inhale or ingest it. The great news is the dog didn’t develop any signs of illness, indicating Covid-19 remains a human infection. This means the human coronavirus virus isn’t living and replicating in a pet’s body, amplifying it’s spread. If a dog or cat encounters or carries SARS-CoV-19, it’s strictly an accident.
Accident or not, there remains a minimal risk that a dog or cat’s fur or skin could serve as a mechanical vector for Covid-19 transmission, much the same way a door handle or handshake can spread infection. Bathing your pet frequently is recommended if anyone in your home contracts Covid-19, after public outings during an outbreak, or if you suspect contact with anyone ill.
Until there is clear scientific evidence that dogs or cats can contract Covid-19, I’m going to continue snuggling with my pets all night long. I’ll probably be a little more cautious about any public places we visit during this outbreak and bathe them more often, but that’s about it. And please skip the pet facemasks, no matter what cute pictures you see on social media. Forcing a facemask on your pet will only stress them out, and that’s never cute.
If you have any questions or concerns about your pet’s health or coronavirus infection, be sure to ask your veterinarian. This is an ongoing and rapidly evolving issue, so stay tuned to national and local health agencies for the latest information and advice.
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