Nobody in the United States needs telling what rabies is. What almost nobody knows is what the rules do to their own animal on the night it happens, and those rules turn on one thing: whether the rabies vaccine was current. Everything here comes from the document state health departments follow, the CDC, the national surveillance report and the vaccination guidelines vets work from, and each one is linked at the bottom.
Bats and raccoons head the wild list, with 1,298 and 1,085 cases in 2023. Nobody in the US, Canada or Mexico caught rabies that year. The disease is rare in pets because the vaccine is required, not because the virus is gone.
Every licensed rabies vaccine for dogs is labeled for puppies from three months of age, and the first dose is followed by a booster one year later whatever the product and whatever the age at the first dose. After that it is every one or three years, depending on which product the vet used and what your state or county accepts. The one-year and three-year products are both inactivated vaccines; the difference is the label.
Rabies is a core vaccine for cats too, and the feline guidelines recommend a three-year interval with a three-year labeled vaccine where the local rules allow it.
Most states require the vaccine by law for dogs, most of those for cats, and some for ferrets, once the animal is between three and six months old. About ten states have no rule at state level and leave it to the county or city, which usually has one. Your county animal control office knows which rule applies to your address, and the certificate the vet hands you is the proof. Keep it where you can find it at night, because the next section is about what happens when you cannot.
A raccoon in the yard, a skunk under the porch, a fox on the trail, a bat on the floor of the garage. If the animal is not caught and tested, the rules treat it as rabid, and what happens to your dog or cat then depends entirely on the vaccine.
A booster right away and 45 days of observation at home, under your control. The compendium: dogs, cats, and ferrets that are current on rabies vaccination should immediately receive veterinary medical care for assessment, wound cleansing, and booster vaccination.
The same. A booster right away and 45 days at home. The paperwork is what makes the difference, which is why the certificate matters.
The compendium recommends euthanasia. If you refuse, it is a strict quarantine of four months for a dog or cat, in an enclosure that prevents contact with people and other animals, with the vaccine given within 96 hours of the bite. An overdue animal with no proof can sometimes be blood tested instead, to show it was vaccinated before.
That is the whole argument for the vaccine date, in one paragraph. A current certificate turns the worst night of the year into a booster and six weeks of keeping the dog in. A lapsed one, with no paperwork, turns it into four months in a cage or a decision nobody wants to make.
Bats are the animal behind most human rabies deaths in the US, and the reason is that the bite is easy to miss.
So the health departments treat some situations as a possible exposure even when nobody saw a bite: a person who wakes up to find a bat in the room, and a bat found near an infant, a toddler or someone who cannot say what happened. For the dog or cat, a bat it was in a room with, or one it brought you, is an exposure under the rule above unless the bat is tested and clear.
The Texas health department's instructions for the bat itself: wear leather gloves, do not touch it with bare skin, shut it in one room, put a coffee can or similar container over it, slide a piece of cardboard under the can, and do not release it. Then call animal control or the police to have it sent for testing. A tested bat that comes back negative ends the whole thing, for the people in the house and for the pet.
The rule is the same in every state and it does not care whether the vaccine was current. The animal is confined and watched for ten days from the bite, at home if the health department allows it. If it is healthy on day ten, it could not have passed rabies on in the bite.
Two things people get wrong. The rabies vaccine is not given during the ten days, because a reaction to the shot could be mistaken for the disease. And if the animal falls ill during the ten days, it is put down and tested, so a vet needs to see it the same day anything changes. The person who was bitten washes the wound immediately with soap and water and sees a doctor, who decides with the health department whether the shots are needed.
Cat owners tend to think rabies is a dog subject. The surveillance says the opposite: 222 rabid cats were reported in 2023, and cats have been the most frequently reported rabid domestic animal for years. The 2016 compendium already made the point.
An indoor cat is not out of it. Bats come indoors, and a cat is the animal in the house most likely to catch one. The same three outcomes above apply to a cat after a bat, and the certificate is what decides which one.
Merck's description: sudden and severe behavioral changes and unexplained paralysis that worsens over time. In the furious form the animal becomes irritable and may viciously and aggressively use its teeth and claws with the slightest provocation. In the paralytic form the throat and jaw muscles go, with excess salivation and an inability to swallow. Most cases in dogs develop within 21 to 80 days after exposure, and it can be considerably shorter or longer.
A vaccinated dog that goes strange after a fight with a wild animal is still a same-day call to the vet, and the vet will ask about the vaccine and the wildlife contact before anything else.
A rabies titer is a blood test that measures antibodies. It is required for taking a pet to some countries. It is not a substitute for the vaccine at home.
A medical exemption, for an animal the vet believes the vaccine would harm, exists in some states and not in others, and an exempt animal is treated as unvaccinated on the night it meets a raccoon. Ask the vet which applies where you live before you rely on one.
Petipedia's traveling with a pet page covers the rabies paperwork for crossing a state line or bringing a dog into the US.