Decontaminating a Dog or Cat After Floodwater or Ash

Wash the contamination off quickly and safely. For a dog or cat that has been in floodwater or in ash from a burned structure, the published sequence is short. Put on your own protective gear. Remove the collar and harness. Wipe large dry particles off with a damp microfiber towel, never a brush or comb. Protect the eyes. Wet the coat completely, lather with dish soap or baby shampoo using your fingers from front to back and top to bottom, rinse thoroughly, rinse the feet again, and dry the animal fully and keep it warm. Dogs wear a cloth or basket muzzle for the bath. Cats are never muzzled. Bleach and other disinfectants stay off the coat. If the animal has already licked the contamination off itself, is injured, has trouble breathing or is too frightened to handle, call a veterinarian or ASPCA Animal Poison Control at (888) 426-4435 before you try a bath.

This page starts after the contact has already happened. Whether the animal should be back on the property at all is a separate decision, and the returning home with pets checklist covers it. Making water safe to drink is another, and the water purification comparison for pets settles it. If the cat is hiding, getting a hiding or scared cat into a carrier comes first.

Three kinds of document sit behind the steps below. Texas A&M’s Pet Talk article of January 5, 2024 is written for owners and quotes Dr. Deb Zoran, then interim director of the Texas A&M Veterinary Emergency Team. A 2024 peer-reviewed protocol from Zoran and colleagues covers companion dogs. NASAAEP’s 2023 Decontamination best practices is written for responders. They do not agree on every detail, so where they differ this page says which document says what.

When to Call First

Call on suspicion, not on symptoms. Texas A&M’s article explains the urgency: some contaminants, such as oil and certain chemicals, can be absorbed through the skin, and even those that are not can be swallowed, because pets “can still lick themselves and ingest the contaminants or expose their pet parents to the hazardous materials”. Los Angeles County’s pet fact sheet says the same about smoke residue and soot: “Even small amounts of these substances can harm your pet if licked, eaten, or inhaled.”

Cats make this sharper. A 2017 study in Frontiers in Veterinary Science explains that researchers use pet cats as a sentinel for household dust exposure because of their grooming habits. It measured flame retardants in cats and the people they lived with, not ash or floodwater, so it supports the grooming route and nothing more. Responders plan for the same behavior: NASAAEP says even a harmless training substance must be kept from being licked. Whatever is on the coat has a route to the stomach the moment you set the animal down.

The numbers:

• For the animal. ASPCA Animal Poison Control Center, (888) 426-4435, says it is available 24 hours a day, 365 days a year, and that a consultation fee may apply. Your own veterinarian or the nearest emergency veterinary hospital is an equally reasonable first call.
• For a person. The federal Poison Help Line is 1-800-222-1222, available 24/7 in over 100 languages, according to the HRSA Poison Help site.

Tell whoever answers what the animal was in (floodwater, or ash from burned structures) and roughly how long it had access to its own coat before you cleaned it. If you cannot wash the animal safely, that is a reason to call, not a reason to settle for a wipe.

Who Should Do the Washing

NASAAEP’s responder guidance is blunt: “Only trained personnel should attempt to decontaminate any animal.” Its sample procedure comes from a state radiological planning work group and is a template for a fictional nuclear generating station, not a bathroom guide. Where it does allow owners to do the work, the owner is given protective equipment, shown how to put it on, taught how to decontaminate the pet, and supervised if possible. The same document lists the drawbacks of owners working alone: no training in safe handling and decontamination, protective equipment problems including no respirator fit testing or medical clearance, injury potential, added exposure, and a washing that fails to decontaminate.

The 2024 Texas A&M protocol describes the staffing in a mass decontamination line: at least four people, one highly skilled in animal handling and two or three with just-in-time training, plus a veterinarian or at minimum a veterinary technician to assess the animal’s temperament and health before the wash. Its first protocol line calls medical assessment essential, to confirm the dog is stable enough for decontamination.

None of this means leaving a contaminated animal contaminated. It means that if animal control, a veterinary hospital or a responder decontamination unit is available, use it. If you are doing it yourself, you are one or two people with a bathtub, and the steps below are the closest approximation the owner-facing sources give. Put the vet before the bath if the animal is injured, has trouble breathing, shows signs of illness or is too frightened to handle safely.

What Is on the Coat

Floodwater. NASAAEP is direct: “Floodwater must be treated as a severe contaminant, and animals must be decontaminated.” It says floodwater carries stored chemicals released from flooded areas along with microorganisms from human and animal sewage, and that the bacteria may include serious pathogens such as Salmonella and flesh-eating bacteria. Consuming floodwater can cause gastrointestinal illness from raw sewage bacteria, and chemical exposures can cause illness that needs veterinary medical intervention. The document says animals and responders should both be monitored for signs of illness after floodwater decontamination. Both means you as well as the pet. A cat does not need to have drunk anything: wet feet it then cleans are enough.

Ash. EPA says ash from burned structures at the wildland-urban interface generally contains more harmful chemicals than forest ash. Its list includes asbestos, heavy metals (lead, arsenic, cadmium, chromium, copper, nickel and zinc), polycyclic aromatic hydrocarbons, dioxins and furans. This page attaches no concentration or health threshold to any of them. EPA also warns that wetting ash creates its own hazard: “Contact with wet ash can cause chemical burns or skin irritation.” A damp towel over a loaded coat, and the bath after it, are wet ash against skin, which is why nothing here is done bare-armed. EPA’s instruction for animals is one sentence: “Clean ash off pets and other animals and keep them away from contaminated sites.”

If you suspect asbestos or other hazardous waste in the debris, EPA’s instruction is administrative: contact your local hazardous waste authorities about disposal. It also says to consider professional help when there is structural damage, hazardous materials, an affected HVAC system or more cleanup than you can manage. There is no homeowner method for handling suspected asbestos debris, and this page gives none.

Why removal is the priority. NASAAEP says removing external contamination is the priority so that the animal does not contaminate itself, other animals, people or the home. It also says an animal may need decontamination more than once if visible contamination remains. The radiological condition attached to that sentence does not apply to ash or floodwater, but the visible-contamination half does. One wash is not guaranteed to be the whole job.

For the decisions made while the water is still rising, including never walking or driving into moving water to reach an animal, see flood and flash-flood pet preparedness. For a radiological incident the federal sequence starts with you, not the animal; the radiation emergency shelter-in-place guide covers it.

Protect Yourself First

Texas A&M’s article says Dr. Zoran recommends owners wear the following while washing a pet “because contaminants will fly when animals shake from being wet”:

• Eye protection such as glasses, goggles or sunshades if outside.
• A facemask that covers the nose and mouth, to prevent wastewater exposure.
• Gloves and an apron or full-body covering such as a rain suit, to protect clothing and skin from wastewater.

Put it on before any water runs; gear put on after the wash starts protects nothing.

That list is for washing an animal. For ash, other sources add to it. California’s health department says to wear a close-fitting N95 or P100 mask when cleaning indoors. Los Angeles County’s return-home guidance lists N95 masks or respirators, safety goggles, gloves, long-sleeved shirts, long pants, shoes and socks. EPA’s ash page describes a NIOSH Approved respirator marked N95 or P100, work gloves, long sleeves and pants, thick-soled shoes, goggles and a head covering, and says surgical masks and one-strap dust masks are not designed to seal tightly to the face and will not protect your lungs. It also says people with heart or lung disease should talk to a health provider before using a respirator or working around ash. No source here publishes a respirator instruction written specifically for bathing an animal, so the mask is a carry-over from the indoor-cleaning guidance for ash.

Check air quality before opening windows. Los Angeles County says to open windows and doors to ventilate once air quality improves, warns about letting smoke back in if conditions worsen, and says to use HEPA air purifiers with windows closed when it has not improved.

The respirator is for you. Los Angeles County states: “Do not place an N95 respirator on your pet.” It adds that the elastic straps can choke or strangle pets and the mask material can block breathing through the nose or panting. The dog smoke mask guide covers why human respiratory protection does not transfer to an animal’s face.

Who should hand the job over. EPA says people with heart or lung disease, older adults and pregnant women should not participate in ash cleanup, and that children should not be near ash or ash-contaminated sites. The federal mold cleanup guide, developed by EPA, HUD, FEMA, NIH and CDC, says people with breathing problems such as asthma or weakened immune systems should stay away from moldy sites and children should not take part in disaster cleanup. Those lines are about ash cleanup and mold sites, not about bathing a pet. No source publishes an equivalent exclusion for the person washing an animal, but if you are in one of those groups and another adult is available, hand the job over. A better mask is not the answer.

After the work. EPA says that if ash gets on your skin, in your eyes or in your mouth, wash it off as soon as you can. The mold guide says to shower and change your clothes after leaving a mold site; that is written for mold, and it costs nothing to follow here. For a person’s exposure, call Poison Help at 1-800-222-1222.

The Wash, Step by Step

1. Set up a quiet room and a second person

Texas A&M says the first thing to consider is the pet’s state of mind, since fear or stress can lead to aggression or unpredictable behavior. Dr. Zoran suggests washing in a quiet environment with at least one additional person to keep the setting calm and controlled and the animal’s stress low. Gather everything first: soap, sterile eyewash or saline, sterile eye lubricant, a muzzle for a dog, a microfiber towel, a slip lead or spare collar, several clean towels and a bag for contaminated gear.

For a cat, NASAAEP notes that indoor decontamination may be preferred because it lowers the chance of escape. A contaminated cat loose outside after a disaster is a second emergency.

2. Remove everything the pet is wearing

Once your gear is on, Texas A&M says to remove any apparel such as a harness or collar, as it is contaminated. Bedding in a carrier comes out too, to be washed or thrown away depending on how dirty it looks. The 2024 dog protocol says to remove the collar, harness and leash and restrain the dog with a slip lead that can be washed or disposed of. NASAAEP’s sample procedure says worn items may not be decontaminable and may not be returned to the owner. If a collar is porous, soaked and cheap to replace, replacing it is the simpler call. The gear disposition guide covers each item once it is off the animal.

Photograph the tag before the collar goes in the bag, and write the pet’s name and your phone number on the slip lead or temporary collar. If the pet has a microchip, confirm the registry has your current number. A flood is exactly the event that separates households from animals; finding a lost pet after a disaster covers the rest of that chain.

3. Wipe dry particles first, and never brush

Dr. Zoran, quoted by Texas A&M, says to start with dry decontamination when large dry particles such as insulation are on the pet: use a damp microfiber towel to wipe them off before washing, because a towel removes dry particulates better than water. Then comes the half that gets dropped: “No matter the method, you don’t want to use a brush, comb, or anything that can push contaminants closer to the skin.” The word dry describes the particles, not the towel. Texas A&M adds that all pets get a wet decontamination and only some need the dry step beforehand.

The 2024 dog protocol adds a qualifier that decides whether the step applies: it is for dry particulates, “not wet or oily”, and it says not to vacuum, brush or sweep with force. A dog pulled from moving water with wet silt in its coat is a wet decontamination from the start. A dog that walked through a house days after the water dropped, carrying dried mud, gypsum dust and shredded insulation, gets the damp-towel pass first. Both documents prohibit a brush in either case.

4. Eyes first, and leave the ears alone

Dr. Zoran’s eye steps begin with a flush using sterile eyewash or contact lens solution. Flushing the eyes tends to flush the nose too; you can wipe the front of the nose if contaminants are clearly present, but you should not squirt anything into the nose. Then put sterile eye lube in the eyes, so that if soap gets in them it does not cause a problem. Do not spend time cleaning ears. Spraying water into them could push contaminated material further down the ear canal, and significant debris in the ears needs someone trained. The 2024 dog protocol compresses this into rinsing eyes and nose with sterile saline and then applying eye lubricant to both eyes.

NASAAEP’s cat procedure also opens with the eyes, with a condition attached: flush them with water, ophthalmic solution or saline if the cat can be handled without injury to either the cat or the handler.

Sterile eyewash and sterile eye lubricant are the two items most likely to be missing from a house at the moment they are needed. The pet first aid kit guide covers where they sit in a kit.

5. Dogs get a muzzle, and cats never do

For dogs, Texas A&M recommends a cloth or basket muzzle to prevent a bite injury, because even well-behaved, frightened dogs may react to situations they normally would not mind, such as a bath. The 2024 protocol goes further and says a muzzle should go on all dogs regardless of demeanor, after the face is wiped. The muzzle versus carrier comparison covers basket against soft muzzles, including panting.

For cats the same veterinarian draws the opposite line: cats “should not be muzzled, as it will create greater stress and possibly make it difficult for them to breathe”. The alternative she names is a towel gently placed over the cat’s face to keep it calm when you begin to wet it.

NASAAEP’s responder document lists, under behavioral triage, considering methods to prevent self-grooming, with muzzles as an example, for dogs and cats. That sits inside a corridor staffed by trained personnel. In a home, follow the veterinary instruction written for owners. None of the sources here recommends an e-collar, a bodysuit, a bitter spray or a taste deterrent for a contaminated cat, so do not improvise one. Confinement in a clean space and a fast wash are what the record supports.

6. If the pet cannot be handled safely

Stop and call your veterinarian. Do not escalate the restraint. NASAAEP’s responder tools, including cat sacks and a wire cage, belong to trained teams. It publishes the option that is easy to overlook, which is deferral: any pet that cannot be safely decontaminated should be kenneled and held until resources for restraint, including sedation, are available.

In a home that means confining the animal away from people and other animals and phoning. Confinement limits spread, but a contaminated cat in a closed room keeps grooming the coat the whole time, so it does not pause the exposure. Tell whoever answers that the animal is contaminated, cannot be handled and is grooming now, rather than describing a routine appointment, because that detail decides how the call is triaged.

Sedation is a veterinary decision. Texas A&M says owners may need veterinary assistance for medications to calm cats who do not like water or baths. That means a conversation with your vet, not a supplement, a pheromone product, a leftover medication or something a neighbor offers. If sedation is used, NASAAEP’s clause travels with it: “Sedated animals should never be submerged, and care must be taken that the pet’s mouth and nose are never underwater.” It adds that sedated animals need to be dried more quickly and thoroughly to avoid hypothermia, especially animals with low body mass.

7. Wet the coat completely, then soap

Texas A&M’s order is plain: make sure the coat is completely wet before applying soap, and Dr. Zoran recommends dish soap or baby shampoo as safe, easy to obtain and very effective. Then rinse thoroughly with clean water. The 2024 dog protocol gives the reason: soap action is incomplete if the coat is not thoroughly wetted, and long coats take longer. Its soap line says to apply small amounts of dish soap to the top of the head, back, sides, rear, undersides and feet. The amount varies by dog, and Dawn or other dish soaps tend to lather well, so less is more. The key is to work the soap down to the skin, which is easier with short coats than with thick undercoats. Use your hands, not a brush, because stiff brushes or mitts can cause skin abrasions and increase contaminant uptake.

NASAAEP’s equipment list names non-medicated pet shampoo, baby shampoo or original Dawn dish detergent, diluted, and warns that careful use of Dawn is recommended for working dogs because it has been shown to cause excessive drying of canine skin. It does not say what the dilution should be. The Texas A&M press release quotes Dr. Zoran saying dish soap is still the better option for removing oily substances in most settings. The paper itself found no statistically significant difference in wash time or water use between the two soaps it compared, and it says the soaps’ antibacterial properties were not tested.

For a cat that cannot be handled in a tub, NASAAEP’s method, written for trained responders, is to spray diluted liquid soap or shampoo onto the cat in a wire cage with a small trigger sprayer, then spray the cat gently with water. Warm water is preferred. Do not use a strong stream, which may panic the cat and cause injury. The cat stays in the cage to dry, in a kennel in a warm area. The word diluted does real work in that instruction and NASAAEP never defines it.

NASAAEP describes the goal as enough water and surfactant to penetrate the haircoat and remove the agent from the skin. Dr. Zoran notes that bathing is harder with certain hair types, long or thick hair and heavy contamination, because some materials trapped in the coat can be extremely difficult to remove.

8. Lather in one direction, front to back and top to bottom

Dr. Zoran’s rule is to wash and lather with your fingers front to back and top to bottom. The reason clause is the rule: otherwise, “you will recontaminate the clean areas”. Every pass moves contamination toward ground you have not cleaned yet, so washing in circles or starting at the muddy legs undoes what you have done. The 2024 protocol carries the same direction into the rinse: head to tail, top to bottom, each side and the undersides, and eventually the feet, until all soap is removed.

9. Rinse the feet again

Both owner-facing sources treat the feet as their own step and place it differently. Texas A&M’s Dr. Zoran says that once you are done cleaning, take the pet out of the tub, drain the water and rinse the feet again, since the pet was most likely standing in dirty water and will otherwise track contaminants elsewhere. The 2024 protocol puts it at the end of the rinse: as the last step before removing the dog from the wash area, pick up and rinse each foot individually and carefully. A household bathtub has no inner tub with drain holes like the study’s wash station, which is why the Texas A&M version, rinsing the feet again after the water is drained and the animal is out, is the one that maps onto a home.

10. Dry the pet and keep it warm

Texas A&M’s Dr. Zoran strongly encourages ending the process by drying the pet with clean towels, especially if the air temperature is lower than 65 degrees, because pets bathed in cooler temperatures can become hypothermic. NASAAEP’s drying section uses the same number for a different point: in mild or warm conditions above 65 degrees, towel drying can be adequate for dogs, who can finish drying in a wire kennel. For smaller animals or colder temperatures, electric grooming dryers may be needed, with extreme caution to avoid overheating. The 2024 protocol says to towel dry, then, if temperatures are less than 70F, place the dog in a kennel in a warm area to dry or add a kennel dryer.

These are three documents with three figures and three purposes, so read each against its own source. What they share is the direction: a wet pet in a cold, powerless, post-flood house is a hypothermia problem. If the power is out and the pet is small, thin or old, plan the drying before you start the wash. For a cat, do not leave a wet cat in a cold room. NASAAEP’s responder method dries the cat inside a kennel in a warm area, undisturbed, without pulling it out for a second round of handling.

11. Check again

Do not tell yourself the pet is clean. NASAAEP defines decontamination as reducing contamination to non-hazardous levels and says: “It may be nearly impossible to remove all contamination.” It also says that after decontamination, pets should be checked for remaining contaminants before returning to their owners, and the checking it describes uses instruments and trained personnel a household does not have.

In the 2024 Texas A&M study, washers checked with an ultraviolet flashlight against a fluorescent test contaminant and rewashed any area where it remained. The paper reports that “the throat latch and between the toes were the 2 locations in the dogs where it remained”. Those are the two places to go over again, and the two a person washing a frightened dog is least likely to reach. Keep the pet off soft furnishings until it is dry and keep it from licking.

How Long and How Much Water

The only measured figures come from trained washers working on calm dogs, and they are planning figures for emergency managers, not a timer for your bathroom. Zoran and colleagues washed 63 lightly contaminated, medium-weight, short- to medium-coated, highly tractable Labradors and Hounds from a state facility colony. The mean wash time was 535.9 seconds for medium-coated dogs and 368.5 seconds for short-coated dogs, with mean water use of 7.91 and 6.33 gallons. The paper’s discussion puts the minimum total at 15 to 20 minutes per dog once prewash preparation and postwash processes are counted. Its abstract, results table and discussion do not all carry the same figures, so treat none as a target. The paper says dogs with very short hair, large dogs with dense coats, long tangle-prone coats, and dogs with mud-covered or oily coats will not fit its data, and its washes took place at ambient temperatures above 75°F (24°C). The endpoint was not a clock: the researchers checked for residual contaminant under ultraviolet light and rewashed until it was gone.

Take scale from that, not precision: a helper, several gallons of water and a sequence, done once and done properly.

What Not to Put on the Pet

The instinct after a flood is that dirty water needs a disinfectant. This is where readers get hurt.

Human decontamination chemicals. The 2024 Zoran paper says most human skin decontamination approaches cannot be safely used on animals because of the significant risk of ingestion through mucous membrane exposure, grooming or inhalation. It names sodium hypochlorite (household bleach) among them, either during application or from the dwelling time of 10 to 30 minutes those products need. Its alternative is physical removal: wiping dry particulates off the coat, or bathing with emulsifying soap and gentle working of lather into the coat.

A veterinary source that points the other way. The 2022 Frontiers review of working-dog decontamination says that for dogs meeting floodwater, soap and water followed by a dilute hypochlorite rinse to neutralize biological contaminants is commonly recommended. That review is about military and search-and-rescue dogs, reports what is commonly recommended and cites another source for it, and publishes no ratio, contact time or rinse count. Two veterinary sources point in different directions on whether bleach belongs on a dog at all, and neither publishes a figure for a soap-and-water bath at home. The only quantified hypochlorite figure in these sources is a walk-through foot bath in a NASAAEP equipment list for responder dogs when a biological hazard is suspected. It is not a whole-body wash, not for a cat and not for a household. This page does not tell you to put bleach on a dog or a cat; if you know what the animal was exposed to, ask a veterinarian or ASPCA Animal Poison Control.

Dish and container figures. Real published dilutions and soak times exist in disaster guidance, and they are written for food containers, dishes and hard surfaces. They belong to those objects. Do not carry one onto a coat, skin, a wound or a soft carrier. The pet food salvage guide quotes the container procedure where it applies.

Household cleaners. ASPCA’s Poisonous Household Products page says: “Most cleaning products are safe to use around dogs and cats as long as they are used per labeled directions.” The condition is the point. No general-purpose cleaner carries a direction for washing an animal, so that sentence endorses nothing on this page. The page adds that cleaning products need veterinary advice around birds, which are extremely sensitive to the fumes.

Bathing has a cost. The 2022 review lists the risk that bathing may increase absorption through the skin, and notes that soap and water have been shown to enhance absorption of fat-soluble chemicals. That is not a reason to skip the wash; every source that describes animal decontamination says to wash. It is a reason to wash once, properly, in the published order, instead of scrubbing four times in an evening, and another reason that a known chemical exposure is a call to a vet rather than a matter of trying harder in the tub.

Volcanic ash is a different case. The International Volcanic Health Hazard Network says to keep pets indoors and to brush them before letting them in. That is advice from a volcanic ash body about a different material, which it describes as sharp and crystalline and as scratching surfaces when brushed. For structure-fire ash and floodwater, follow the no-brush rule above. The volcanic ash fall guide works through that hazard.

If Your Water Is Under a Boil Water Notice

Read your own notice and ask your veterinarian. CDC’s boil water guidance is written for people, and it turns on not swallowing the water: “Be careful not to swallow any water when bathing or showering.” A cat does exactly that when it grooms. CDC’s separate caring-for-pets section covers drinking water only, saying to give pets bottled water or boiled water that has cooled. A do-not-use advisory is stricter than a boil water advisory. A contaminated pet that cannot be washed is a call, not a wait: contact your vet or ASPCA Animal Poison Control. The boil water advisory guide for pets covers what utilities and states publish.

Where the Wash Water Goes

Responder documents hand the decision about wastewater to whoever has authority over it. The 2024 study drained its test water into the sewer and describes capturing it in a bladder or berm when release is not safe. NASAAEP lists containment or controlled discharge as directed by incident command, and its sample procedure leaves disposal to the hazardous materials team. For an ordinary household flood, washing an animal indoors into your own drain is the default these documents describe where it is permitted. If your area is under an advisory about the sanitary sewer, storm drain or water system, that advisory is the authority.

Two things not to do: wash the animal in floodwater, which is the contaminant you are removing, and wash where the wastewater runs back over the animal.

Clean What the Pet Goes Back To

A clean pet returning to a contaminated carrier gets washed twice. Los Angeles County says smoke residue, soot and ash cling to surfaces, so thoroughly clean floors, bedding, furniture, toys and food and water bowls before the pet uses them, and give the pet a designated safe, familiar space free of ash and smoke particles, using crates or exercise pens to keep it in cleaned areas. Los Angeles County also advises wiping paws and coat with a damp cloth after walking outdoors, then “Consider bathing your pet more frequently”. That belongs under routine ash exposure after an outing and is not a decontamination of an animal that has been in ash.

EPA says to avoid products that add chemicals to the air to remove smoke odors, such as ozone generators, hydroxyl generators or other oxidizers.

For cleaning products, follow the label. ASPCA says undiluted bleach ingested can injure the mouth and esophagus, and that diluted bleach can be used on pet toys and kennels only if it is diluted, thoroughly rinsed and the bleach odor has dissipated before the pet is back around the items. EPA’s rule for any disinfectant is to ventilate and exhaust air outdoors, and never to mix chlorine bleach with cleaning solutions or detergents that contain ammonia, because toxic fumes could be produced. The federal mold guide also says not to mix bleach and ammonia.

After the Wash

Watch for illness. A wash does nothing about what the animal already swallowed. Vomiting, diarrhea, fever, lethargy, appetite loss, limping, or red or raw skin in the days after a flood is a call to your veterinarian, not a wait-and-see. NASAAEP notes that the waste of an animal that ingested contaminants may itself be contaminated and may need disposal as directed by veterinarians and public health officials. Costs have their own page: paying a post-disaster vet bill. The exposure log helps you give a vet the history.

Leptospirosis, for dogs. Whether to vaccinate is for your veterinarian. The 2023 ACVIM consensus statement says vaccines should be given annually to all dogs from 12 weeks of age, regardless of breed. Three qualifiers matter to someone reading this with a wet dog. A vaccine needs two initial injections four weeks apart, so one given today is not protection today. It is not absolute: infections in fully vaccinated dogs have been documented, though they appear uncommon. And a history of water exposure should increase suspicion, but all dogs should be considered at risk. Take that to your vet.

What the Sources Do Not Say

No source gives a soap dilution ratio, a soak time or a required number of rinses for washing a dog or cat. A 2022 Frontiers review quotes the field’s own assessment that “evidence-based canine decontamination protocols are underrepresented in the veterinary literature”. Anything you find online with a soap dilution or soak time is not coming from the documents here. If your vet gives you a number for your pet, it outranks this page.

Nor do they give a time window for how long a pet can have access to a contaminated coat before it matters, an amount of ash, sediment or residue that makes an ingestion dangerous, a household endpoint for a finished bath, or a commercial wipe that is safe on a contaminated cat. A wipe is not a decontamination in any of these documents. No page can predict whether a pet that already groomed a contaminated coat will become ill, which is why the advice above is to call on suspicion.

Checklist

• Decide first whether the animal needs a veterinarian before a bath: injury, trouble breathing, signs of illness or a temperament you cannot handle safely.
• If animal control, a veterinary hospital or a decontamination unit is available, use it.
• Set up a quiet room with a second person and gather supplies before the pet arrives.
• Put on your own gear: eye protection, a mask over nose and mouth (an N95 or P100 if ash is involved), gloves and an apron or full-body covering. Nothing goes on the pet.
• Remove the collar, harness, leash and carrier bedding. Photograph the tag first.
• Wipe dry particles with a damp microfiber towel. No brush, no comb, no vacuum.
• Flush the eyes with sterile eyewash or saline, put nothing in the nose, leave the ears alone, then apply sterile eye lubricant.
• Muzzle a dog (cloth or basket). Never muzzle a cat; use a towel over the face.
• If the pet cannot be handled, stop and call. Say it is contaminated, cannot be handled and is grooming now.
• Wet the coat all the way through, lather with your fingers front to back and top to bottom, and rinse until the soap is gone.
• Rinse the feet again after the water is drained, and go back over the throat latch and between the toes.
• Dry with clean towels in a warm space. Never leave a wet pet in a cold room.
• Clean the carrier, bedding, bowls, toys and floors the pet will use, following product labels and never mixing bleach with ammonia products.
• If the pet groomed contaminated fur at any point, call your vet or ASPCA Animal Poison Control at (888) 426-4435.
• If a person got ash on skin, in eyes or in the mouth, wash it off; for a person’s exposure, Poison Help is 1-800-222-1222.
• Shower and change your clothes, then watch both of you for illness in the days after.

Where to Go Next

This page is a spoke of the pet emergency playbooks hub. The returning home with pets checklist decides whether the pet comes out of the vehicle at all. Wildfire smoke and pets handles the air rather than the coat, and dog boots for wildfire ash and hot debris covers the paws. Pet behavior changes after a disaster covers the weeks that follow.

The version of this you do on a quiet afternoon is short. Put sterile eyewash, sterile eye lubricant, clean towels, a spare collar, a microfiber towel, a basket muzzle for a dog and plain dish soap in one box, and find out now whether your county’s animal control or your veterinary hospital has a decontamination capability and what its number is. Then reread the direction rule, because it is the one step that fails silently: a pet washed in the wrong order looks exactly like one washed in the right order.