Cats get “parvo” (feline panleukopenia / feline parvovirus, FPV) by coming into contact with the virus shed in the bodily fluids or environments of infected cats.

What “parvo” in cats is

  • In cats, “parvo” usually refers to feline panleukopenia virus (FPV) , a highly contagious parvovirus that attacks the intestines and immune system.
  • It spreads extremely easily and can survive for months on surfaces, which is why outbreaks in shelters and multi‑cat homes can be so severe.

Main ways cats get parvo

  • Direct contact with infected cats : Grooming, playing, nose‑to‑nose contact, or contact with vomit, saliva, urine, or feces from an infected cat.
  • Contaminated environments and objects : Litter boxes, food and water bowls, bedding, carriers, cages, grooming tools, and even clinic or shelter surfaces can hold the virus for a long time.
  • On people’s hands, clothes, and shoes : Humans do not get sick from FPV, but can carry the virus into the home after touching contaminated areas, other cats, or shelter environments.
  • Fleas and other vectors : Fleas that have fed on an infected cat can mechanically carry the virus to another cat.
  • From mother to kittens : An infected pregnant cat can pass FPV to her unborn kittens through the placenta, often leading to miscarriage, stillbirth, or serious neurological problems in surviving kittens.

Which cats are at highest risk

  • Unvaccinated cats , especially kittens under about 5 months old, are the most vulnerable and often get the sickest.
  • Shelter, rescue, and multi‑cat households have higher risk because many cats share space, bowls, and litter boxes.
  • Cats that are sick, stressed, or malnourished and those with weakened immune systems are more likely to catch and struggle with FPV.

Practical prevention tips

  • Keep your cat fully vaccinated on a vet‑recommended schedule, even if they live strictly indoors.
  • Avoid contact with unknown or sick cats and be cautious after visiting shelters or multi‑pet environments; wash hands and change clothes before handling your own cats.
  • Clean with disinfectants known to kill parvoviruses (your vet can recommend products) and regularly wash or replace litter boxes, bowls, and bedding.

If you’re worried about your cat

  • Watch for red‑flag signs such as severe lethargy, vomiting, diarrhea (often bloody), not eating, fever, or sudden collapse, especially in unvaccinated kittens.
  • This disease can be rapidly fatal, so any suspicion of parvo is an emergency; contact a veterinarian or emergency clinic immediately rather than waiting to “see if it passes.”

Information gathered from public forums or data available on the internet and portrayed here.