You could get bubonic plague
Bubonic plague is not just for European history books. Cats and dogs can still carry the fleas that spread this disease, and sleeping next to them puts you at risk. When our pets share our beds, those fleas can jump off of their fur and onto our sheets. From 1977 to 1998, there were 23 documented cases of human bubonic plague that could be attributed to the family cat! Sadly, five of these cases of the plague were fatal. Make sure your pet is getting regular trips to the vet to avoid these diseases in the first place.
