猫狗吐液中有几亿巴氏杆菌和其它危险细菌，会导致皮肤感染截肢或死亡。用狗防舔狂犬病是拿生命开玩笑

"Just because your dog’s saliva may have some potential benefits doesn’t mean it comes without risks. For example, cats' and dogs' mouths contain a bacteria called Pasteurella that could cause a skin infection called cellulitis in humans if transmitted onto a wound. Dr. Scott Weese of the Veterinary College’s Centre for Public Health and Zoonoses explains on the Worms and Germs blog: “The oral cavity of the dog contains billions of bacteria from hundreds of different bacterial species. Many of these are able to cause infection given the right circumstances.” Such circumstances tragically arose for a 32-year-old woman in Decatur, Ga., and a 48-year-old woman from Texas within the past year. Both women were infected with capnocytophaga canimorsus, a bacteria found in the mouths of cats and dogs, after one was bitten by a dog and the other was believed to have contracted it in some way from her 1-year-old pup. Both had their legs amputated after the infection spread, and at least one lost her battle against it. While this bacteria is usually harmless to healthy humans, it can be dangerous and even deadly in those with certain pre-existing conditions. "