How to Disinfect Your Home After Parvo

Parvo is a serious, very contagious virus in dogs, and it is famously hard to clean away. It survives a long time in the home and the yard and shrugs off many everyday cleaners. If your dog or a foster puppy has had parvo, or you are bringing a new puppy into a home where it has been, careful cleaning matters. This guide covers what kills parvo, how to clean hard surfaces, laundry, toys and bowls, and the limits on carpet and yards.

The disinfection steps follow shelter medicine guidance: the Maddie’s Fund sample parvovirus foster protocol and the University of Florida’s best practices for dog sanitation, both in our own words and linked under further reading. Treatment, isolation times and when it is safe to bring a new or unvaccinated dog home are questions for your veterinarian.

Why parvo is so hard to clean

The Maddie’s Fund protocol describes parvovirus as extremely stable in the environment. It can last for over a year in organic material such as feces, vomit and soil, and many routine household disinfectants do not kill it. Two things follow from that: you have to clean off all the dirt and mess first, and then you have to use a disinfectant that is proven to work on parvo, left on for long enough.

What kills parvo

Household bleach, diluted. Both shelter sources give bleach at a 1:32 dilution, which is half a cup of bleach in a gallon of water, with at least 10 minutes of wet contact time. Plain, unscented regular bleach is what these protocols assume; check your label, and follow any disinfection directions printed on it.
Accelerated hydrogen peroxide products sold for veterinary and shelter use, and potassium peroxymonosulfate products, are also listed as effective. Follow the label for dilution and contact time.

Mix bleach fresh each day, as it loses strength once diluted. Bleach does not clean, it only disinfects, so it will not work on surfaces still covered in dirt or mess. Never mix bleach with ammonia, vinegar or other cleaners, and keep the room aired while you work.

Hard surfaces: floors, crates, bowls

Wear gloves and old clothes or a gown, and keep other dogs out of the area.
Pick up all feces and vomit with paper towels and bag it for the trash.
Wash the surface with detergent and water and rinse. This removes the organic matter that shields the virus.
Apply the disinfectant so the surface stays wet for the full contact time, at least 10 minutes for 1:32 bleach. Reapply if it starts to dry.
Rinse and let it dry. Rinse well on anything a dog will lick or eat from, such as bowls and crate trays.

Do this for floors, walls up to dog height, crates, kennels, food and water bowls, hard toys and leashes or collars that can take bleach. See how to clean a dog crate and carrier for crate cleaning in general.

Bedding, laundry and soft toys

The Maddie’s Fund foster protocol says laundry from a parvo puppy should go in the garbage rather than being washed. At home, the safest choice for cheap bedding, towels and soft toys is to bag them and throw them out. For items you want to keep, wash in the hottest water the label allows with laundry detergent and bleach on bleach safe fabrics, and dry fully on high heat. Ask your vet whether that is enough for your situation. Clean the washer afterwards; see cleaning your washer and dryer in a pet home.

Carpet and upholstery

Bleach will damage most carpet and fabric, and the shelter sources note that surfaces you cannot bleach are the hard part. Clean up any mess right away and use an enzyme or detergent cleaner to remove the organic matter; see how to clean dog diarrhea out of carpet. Some veterinary disinfectants are labelled for use on carpet, so check the label and test in a hidden spot. Even then, carpet and upholstery cannot be counted on to be parvo free, so talk to your vet before an unvaccinated puppy uses those rooms.

The yard

You cannot disinfect a lawn the way you can a floor. Pick up all feces as soon as you can. Hard areas such as a patio, concrete run or deck can be cleaned and disinfected like indoor floors. Soil and grass are another matter, so ask your vet how long to keep unvaccinated dogs off it.

Shoes, hands and the car

Wash your hands after handling the sick dog or anything it touched.
Keep a pair of shoes for the sick dog’s area, or clean your soles with diluted bleach after you leave it.
If a sick dog rode in the car, clean and disinfect any hard surfaces and wash or bin the seat cover. See pet accident in the car.

Bringing a new dog home

Parvo is most dangerous to puppies and unvaccinated dogs. Ask your veterinarian how long to wait and what vaccines a new dog needs before it comes into the home or yard. Do not bring a new puppy in on cleaning alone.

If your vet finds giardia rather than parvo, see how to clean your home after giardia.

For a coughing dog rather than one with diarrhea, see how to clean your home after kennel cough.

Keep cleanup supplies ready

Our Pet Cleanup Kit is made for everyday pet stains and odors on carpet and fabric. It is not a parvo disinfectant; for parvo, use one of the disinfectants above after cleaning.

Frequently asked questions

What is the bleach ratio for parvo?

Shelter protocols use 1:32, half a cup of household bleach per gallon of water, left wet on a cleaned surface for at least 10 minutes. Mix it fresh each day.

Do normal cleaners kill parvo?

Many everyday cleaners do not. Use diluted bleach or a veterinary disinfectant labelled for parvovirus, after cleaning off all dirt and mess.

How long does parvo live in a house?

It can survive for a very long time, up to a year or more in organic material, which is why thorough cleaning matters. Ask your vet when it is safe for a new dog.

Can I get parvo out of carpet?

Not reliably. You can clean carpet well and use a carpet safe veterinary disinfectant, but it cannot be treated like a hard floor. Ask your vet before an unvaccinated dog uses that room.