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One Health Toolkit for Health Officials Managing Companion Animals with SARS-CoV-2

One Health Toolkit for Health Officials Managing Companion Animals with SARS-CoV-2
Updated Mar. 23, 2021

Summary of Recent Changes

Key Points

  • This toolkit provides recommendations for public health and animal health officials involved in managing companion animals that test positive for SARS-CoV-2, the virus that causes COVID-19, including those that require hospitalization and those that may be isolated or monitored at home. States or other jurisdictions may have their own specific requirements for these circumstances.
  • At this time, there is no evidence that companion animals play a significant role in spreading SARS-CoV-2 to people.
  • We are still learning about this virus; in some situations, people can spread the virus to animals, especially during close contact. Further studies are needed to understand if and how different animals could be affected by the virus, and the role animals may play in the spread of SARS-CoV-2 to other animals and people.
  • Close coordination between state and local health officials and the veterinary community is important if a companion animal is suspected or tests positive for SARS-CoV-2. Animals that do not require veterinary treatment or care should be isolated and monitored by their caretakers at home.
  • Both the state public health veterinarian and/or state animal health official should be informed of all animals that are being tested for SARS-CoV-2 within their jurisdiction, especially animals diagnosed with SARS-CoV-2 infection, to ensure timely and coordinated response efforts when indicated.
  • Public health and animal health officials should collaborate using a One Health approach to conduct epidemiological investigations for companion animals with SARS-CoV-2 infection. Early coordination and communication between state and federal animal and public health partners is encouraged.

On This Page

Using a One Health approach when managing animals that test positive for SARS-CoV-2

Preparing & Planning for Test-Positive Animals

Managing Test-Positive Animals

End Management of Test-Positive Animals


Additional Resources

Using a One Health Approach When Managing Animals that Test Positive for SARS-CoV-2

The primary means of people becoming infected with SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), is through person-to-person spread. Based on the limited data available, the risk of animals, spreading SARS-CoV-2 to people is considered to be low. We are still learning about this virus. In some situations, people can spread the virus to animals, especially during close contact. However, in the event a companion animal tests positive for SARS-CoV-2, state, local, and federal public health and animal health partners should be prepared to take additional steps to mitigate potential risks associated with exposure to these animals.

A public health response to the identification of SARS-CoV-2 in a companion animal involves drafting policies and protocols, assessing resources, and engaging partners at all levels (e.g., public health agencies, animal health agencies, animal services, local government and legal authorities, and other relevant partners). Public health and animal health officials should collaborate using a One Health approach to investigate companion animals with SARS-CoV-2 infection while keeping personnel safe. The CDC One Health Office is available to provide technical assistance and guidance to state, territorial, local, and tribal jurisdictions managing companion animals diagnosed with SARS-CoV-2.

State officials can reach the CDC One Health Office to set up a consultation by emailing [email protected] or by calling CDC’s Emergency Operations Center (24/7) at 770-488-7100, identifying yourself as a state public health veterinarian or state animal health official, and asking to speak to the on-call member of the CDC One Health Office.

Although commercial laboratories may offer animal SARS-CoV-2 testing, confirmatory testing is available through USDA’s National Veterinary Services Laboratories (NVSL) pdf icon[164 KB, 2 pages]external icon. Confirmatory testing through NVSL is required for all animals except domestic cats and dogs from state, territorial, local, and tribal jurisdictions that have previously confirmed SARS-CoV-2 in cats and dogs.  USDA is responsible for reporting positive SARS-CoV-2 cases in animals in the United States to the World Organisation for Animal Health (OIE). SARS-CoV-2 is an OIE-reportable diseaseexternal icon. Presumptive positive cases that are not confirmed at USDA NVSL will not be reported to OIE.

Preparing & Planning for Test-Positive Animals

Toolkit checklist and guide

Note: First, ensure that necessary (not routine) veterinary care is provided.


  • Identify facilities that are willing and able to care for test-positive animals
  • Provide veterinary facilities with key messages for communication with owners
  • Prepare for multiple means of animal transportation between homes or facilities
  • Assist animal organizations in securing equipment and resources for animal care and movement
  • As able, establish relations with and between One Health officials and agencies at all levels, including local, district, state, federal
  • Establish bi-directional information flows between the state public health veterinarian, state animal health official, and veterinarians


  • Seek confirmatory testing if this is new animal species in the United States, or this is the first test-positive animal in the jurisdiction
  • State public health veterinarian, state animal health official, attending veterinarian, and other relevant partners should discuss management of a test-positive animal
    1. Advise on best practices for animals requiring in-patient care
    2. Advise on best practices and daily monitoring of animals isolated at home
  • For animals moving between homes or facilities, ensure safe transport
  • Report test-positive animals to federal partners, including CDC, through HHSProtectexternal icon
  • Consider conducting an epidemiologic investigation, coordinating with local, state and federal One Health partners to determine:
    1. If other animals in household/facility have been exposed or infected
    2. Routes of exposure
    3. Risk of further transmission

End Management

  • Follow guidance for ending monitoring, isolation and movement restrictions

Prepare for SARS-CoV-2 test-positive companion animals

Please see Evaluating and testing companion animals for SARS-CoV-2 infection for information to guide decision-making on whether a companion animal should be tested for SARS-CoV-2.

Close coordination between state and local health officials and the veterinary community is important if a companion animal is diagnosed with SARS-CoV-2, and early communication between state and federal partners is recommended.  Because the risk of companion animals spreading SARS-CoV-2 to people is low, necessary veterinary care for animals that test positive for SARS-CoV-2 should not be withheld.

State and local health officials may choose to apply this guidance to companion animals suspected to be infected with SARS-CoV-2 or other animal types, such as animals in zoos, sanctuaries, or rehabilitation facilities, as appropriate to suit rapidly changing local circumstances.

Companion animals that test positive for SARS-CoV-2 and require veterinary treatment or hospitalization may fall into one of several categories:

  1. Routine medical care (e.g., vaccinations or boosters);
  2. Medical care due to pre-existing conditions (e.g., ongoing chemotherapy treatment, monitoring for control of diabetes, worsening of an existing condition), and;
  3. Physical injuries and other health conditions unrelated to SARS-CoV-2 (e.g., abscesses, lacerations, fractures).

Like people, some animals with SARS-CoV-2 infection are asymptomatic, while others may present with a combination of respiratory or gastrointestinal illness.  Based on naturally occurring infection in companion animals to date, clinical signs likely to be consistent with SARS-CoV-2 infection in mammalian companion animals include:

  • Fever
  • Coughing
  • Difficulty breathing or shortness of breath
  • Sneezing
  • Nasal discharge
  • Ocular discharge
  • Lethargy
  • Vomiting
  • Diarrhea

Veterinary facilities caring for animals diagnosed with SARS-CoV-2 should have policies that align with the NASPHV Compendium of Veterinary Standard Precautions for Zoonotic Disease Prevention in Veterinary Personnelexternal icon and should be familiar with the American Veterinary Medical Association (AVMA) recommendations during the COVID-19 pandemicexternal icon, which include infection prevention and control best practices.

Animals diagnosed with SARS-CoV-2 that develop illness requiring hospitalization may need to be transported between homes and veterinary facilities. It may be necessary to consider alternative options for transportation if an owner cannot transport their animal, including using animal services, animal control, or an animal rescue team. These organizations should be prepared to handle a test-positive animal, which may involve developing policies and securing equipment and resources. 

Considerations for Service Animals

In the event that a service animalexternal icon tests positive for SARS-CoV-2, the recommendations for monitoring, isolation, and movement restrictions should be handled based on the discretion of the attending veterinarian and the animal handler, in consultation with the state public health veterinarian and/or state animal health official.

In accordance with the Americans with Disabilities Actexternal icon, service animals must be permitted to remain with their handlers.

Establish flow of information

Both the state public health veterinarianpdf iconexternal icon and the state animal health officialexternal icon should be informed of all animals that are being tested for SARS-CoV-2, and especially animals diagnosed with SARS-CoV-2, within their jurisdiction. The state public health veterinarian and state animal health official are encouraged to initiate epidemiological investigation when an animal with SARS-CoV-2 is first identified, even presumptively. State public health veterinarians and/or state animal health officials should review local and state regulations regarding animal disease reporting and consider implementing SARS-CoV-2 reporting requirements where possible. Relevant federal agencies including CDC should always be notified of presumptive positive test results, and early communication and collaboration across all relevant One Health partners at the local, state and federal level is encouraged.

The state public health veterinarian and state animal health official should provide treating veterinarians with guidelines and key messages to discuss with the owner.

Establish a plan with the treating veterinarian for SARS-CoV-2 test-positive companion animals

When an animal tests positive for SARS-CoV-2, a discussion should occur between the state public health veterinarian, state animal health official, and the treating veterinarian regarding continued care (if the animal is already hospitalized) at the veterinary facility, or the treating veterinarian’s ability and/or desire to provide treatment to the animal in the event that it does need veterinary attention. If the animal is healthy or has mild illness, it can undergo isolation at home.

Considerations in this determination should include:

  • Severity and complexity of illness in the animal;
  • Animal health and welfare;
  • Risk of severe illness in the owner or caretaker, such as companion animals owned by older adults or those with serious underlying medical conditions;
  • Vaccination status of the owner or caretaker
  • Whether the veterinarian can provide telemedicine consultation so that the animal can be examined and treated remotely;
  • Availability and ability of the veterinarian and their clinic staff to safely provide in-patient care and treatment for the animal;
  • Vaccination status of the veterinarian and their clinic staff
  • Where telemedicine and in-patient care are not possible, whether it is safe for the veterinarian to provide in-home care services; and
  • Emotional wellbeing and mental health of the companion animal’s owners.

There may also be situations where an owner is unable to provide care for a test-positive animal, requiring that the animal be surrendered temporarily (e.g., when the owner is hospitalized) or permanently. Please refer to Interim recommendations for intake of companion animals from household where humans with COVID-19 are presentexternal icon for these instances, as the guidance provided therein is appropriate for companion animals exposed to human COVID-19 patients as well as companion animals that test positive for SARS-CoV-2.

Managing Test-Positive Animals

When a SARS-CoV-2 test-positive companion animal requires hospitalization or in-patient care

In the event the current treating veterinarian is unable to provide care for the animal, the animal should be transferred to another veterinary facility that is appropriately equipped.

Best practices for transporting a SARS-CoV-2 test-positive animal from a person’s home, or from one veterinary facility to another, include:

  • Under ideal conditions, the companion animal’s owner or caretaker should transport their companion animal in a private vehicle to the veterinary facility.
  • Owners or caretakers with suspected or confirmed COVID-19 should avoid transporting their companion animal to a veterinary facility, regardless of whether they are asymptomatic or sick. If an owner or caretaker has COVID-19 or is otherwise unable to transport their companion animal to the veterinary facility in a private vehicle, then best practices are to:
  • Arrange for a friend or family member from outside of their household to bring the animal to the veterinary facility, or to come pick up the animal and transport it to the new veterinary facility.
  • Alternatively, if curbside pick-up can be arranged by the receiving veterinary facility, then an ill person or a healthy household member may transport the animal, provided they wear a mask, maintain social distancing recommendations, and do not enter the premises.
  • If no other option is available, alternative recommendations are to arrange transportation (see below) in coordination with local authorities, such as animal services, animal control or an animal rescue team.
  • Animal handlers (who are not part of the animal’s household) should be trained and prepared to implement biosafety procedures for infectious diseases when transporting companion animals. These should include infection prevention measures, social distancing, and use of appropriate PPE.
  • If the animal handlers must pick up the companion animal from the home and there are people in the household with suspected or confirmed COVID-19, a healthy member of the household should bring the animal outside while wearing a mask. Animal handlers should only enter the house when absolutely necessary.
    • If the animal handler must enter the house, as few personnel as possible should enter the premises to prepare the animal for transportation:
      • Ask the sick person to confine themselves to a separate room while the animal handler performs the necessary tasks to care for the animal or retrieve it from the household. If this is not possible, ask the sick person to wear a mask that covers their mouth and nose, or;
      • Maintain a distance of at least 6 feet from any household members while in the house. The person going into the house should wear a single pair of disposable gloves, a NIOSH-approved N95 or higher-level respirator (or facemask if a respirator is not available), eye protection, and outerwear if in the same room with the sick person if it is not possible to maintain a distance of 6 feet;
      • Wash hands after handling the animal, touching household surfaces, and interacting with members of the household. If soap and water are not readily available, use a hand sanitizer that contains at least 60% alcohol. Cover all surfaces of the hands and rub them together until they feel dry. If gloves are worn, perform hand hygiene after removing them;
      • Avoid touching eyes, nose, and mouth until after hands have been cleaned.
    • Medium and large dogs should be leashed, and smaller animals, such as small dogs, cats, and ferrets, should be placed in a secure carrier. When possible, animals should be transported in species-appropriate, single-use cardboard carriers or hard-shelled animal carriers that can be cleaned and disinfected with an EPA-registered disinfectantexternal icon after transport.
      • Ensure cleaning and disinfection guidelines are followed, and that workers performing these duties are protected from chemical hazards.
    • Only the animal and necessary equipment should be removed from the premises. Non-essential items such as food (unless the animal is on a specialized diet), dishes, bedding, clothing, toys, or other items from the home should not accompany the animal.
    • Animal transport should occur in a vehicle that has an area that can be covered and cleaned and disinfected and is closed off from driver when possible.
    • Any item (collar, leash, etc.) that arrives at the veterinary facility with the animal should be washed or disinfected. Disinfect bowls, toys, and other animal care items with an EPA-registered disinfectantexternal icon and rinse thoroughly with clean water afterwards.
    • There is no evidence that SARS-CoV-2 can spread to people from the skin, fur, or hair of pets. Therefore, additional measures to disinfect the animal, such as bathing, are not necessary.

Treating a sick, SARS-CoV-2 test-positive animal

The infection prevention and control best practices involved in caring for a test-positive companion animal are likely to be regularly implemented at most veterinary facilities regardless of ongoing outbreaks of infectious diseases. However, these are especially important during an outbreak of an emerging infectious disease such as COVID-19. Veterinary facilities should have:

  • A separate, designated area where SARS-CoV-2 positive animals can be isolated from the rest of the patient population.
    • A planned route for moving the animal from the transport vehicle to an isolation space.
    • Where possible, only animals that test positive for SARS-CoV-2 and are being evaluated and treated should be housed in this isolation space.
    • Space for veterinary personnel to don and doff PPE prior to entering the room, and immediately upon exiting. Alcohol-based hand rub, or a sink with soap and water should be easily accessible.
  • Availability of an adequate amount of appropriate PPE for the projected duration of hospitalization.
  • Plans for limiting the number of veterinary personnel that have contact with the animal.
  • Logs of all personnel that have had contact with the animal for occupational health monitoring.
    • Animal caretaker logs should include names of people interacting with the animal, date, and time the animal was attended, and the type of care provided (e.g., feeding, cleaning, medications, body temperature, pulse rate, respiration rate, procedure etc.).
  • Ability to clean and disinfect the isolation area with EPA-registered disinfectantsexternal icon.
  • Plans for safely exercising and enriching animals, as needed.
    • Dogs may be walked on leash in an area that is ideally separated from areas used by other people or animals.
  • Plans for safe handling and disposal of animal waste until the animal is cleared to return to normal activity.
  • Rules to limit or prohibit visitors and additional human traffic in the area(s) where sick, test-positive companion animals are being housed and treated.

PPE guidelines

It is important that veterinary personnel be trained on the use of PPE, including how to properly don (put on) and doff (take off) PPE. However, veterinary personnel should work with public health colleagues and CDC to stay informed on use and availability of PPE.  Veterinarians should consider their current PPE supply, rate of PPE use, and review Strategies for Optimizing the Supply of PPE.

Given current limitations in knowledge regarding SARS-CoV-2 and companion animals, these PPE guidelines use a cautious approach. Recommendations may change over time, as new information becomes available.

Recommended Personal Protective Equipment (PPE) Based on Companion Animal History
Animal History Facemask Facial Protection (face shield, goggles) Gloves Protective Outerwear (gown or coveralls1) N95 Respirator or suitable alternative2
Non-aerosol generating procedure on a SARS-CoV-2 test-positive animal N Y Y Y Y
Aerosol-generating procedure on a SARS-CoV-2 test-positive animal3 N Y Y Y Y

1 Reusable (i.e., washable) gowns are typically made of polyester or polyester-cotton fabrics. Gowns of these fabrics can be safely laundered according to routine procedures and reused.

2Respiratory protection that is at least as protective as a fit-tested NIOSH-certified disposable N95 filtering facepiece respirator is best practice. However, if an N95 or other respirator is not available, use a combination of a surgical mask and a full-face shield.

3Aerosol-generating procedures, such as suction or bronchoscopy, should be avoided, if possible, on any animals that are test-positive for SARS-CoV-2.

When a SARS-CoV-2 test-positive animal can be isolated at home

Companion animals that do not require hospitalization can be returned to their caretakers to undergo home isolation.

A protocol for home isolation applies to all animals that are test-positive and do not require hospitalization. This protocol involves daily monitoring, isolation recommendations, and movement restrictions.

Daily monitoring

Companion animals that are confirmed to be positive for SARS-CoV-2 and can be isolated at home should be monitored daily by the owner/household members for signs of illness.

If a SARS-CoV-2 test-positive companion animal develops new or worsening clinical signs, the owner should inform the treating veterinarian and arrange for the animal to be transported to their veterinary facility or to another previously identified veterinary facility that can provide appropriate care. The treating veterinarian should also inform the state public health veterinarian and state animal health official of the animal’s status, whereabouts, and treatment/care plan.

Isolation recommendations

For the duration of isolation, have the companion animal stay in a designated “sick room” if possible, or otherwise be separated from people and other animals. This is the same way a COVID-19 positive person would separate from others in their household.

Although the risk of companion animals transmitting SARS-CoV-2 to people is low, these precautions are recommended out of an abundance of caution until more is known about virus transmission.

Regardless of whether the household member has been sick with suspected or confirmed COVID-19, household members that are providing care for an isolated companion animal should protect themselves and follow CDC’s cleaning and disinfecting recommendations.

Based on currently available information and clinical expertise, some people may have an increased risk for severe illness from COVID-19. Where possible, people with an increased risk of severe illness should avoid caring for animals that are test-positive for SARS-CoV-2.

Movement restrictions

Below are activities that should be avoided until the companion animal is cleared to return to normal activities:

  • Walks in public or shared spaces (except when unavoidable for elimination);
  • Visits to veterinary facilities, without prior consultation with the treating veterinarian;
  • Visits to human healthcare facilities, long-term care facilities, schools, or daycares;
  • Visits to parks (including dog parks), markets, or other gatherings such as festivals;
  • Visits to the groomer, including mobile grooming salons;
  • Visits to pet daycares or boarding facilities;
  • Serving as a therapy animal; and
  • Other outings such as playdates, hikes, or visiting other homes or stores.

Repeat testing of a SARS-CoV-2 test-positive companion animal

Where deemed appropriate, repeat testing of companion animals for SARS-CoV-2 should be conducted in coordination with the state public health veterinarian and state animal health official. Federal partners, including CDC and USDApdf iconexternal icon, should be consulted as relevant.

End management of test-positive animals

When to resume normal activities with a SARS-CoV-2 test-positive companion animal

Monitoring, isolation, and movement restrictions for companion animals (either hospitalized or isolated at home) diagnosed with SARS-CoV-2 can end under the following conditions.

If the companion animal is test-positive for SARS-CoV-2, monitoring, isolation, and movement restrictions can end if these conditions are met:

  • The animal has not shown clinical signs consistent with SARS-CoV-2 infection for at least 72 hours without medical management;

AND one of the following conditions:

  • It has been at least 14 days since their last positive test from a lab that uses a validated SARS-CoV-2 RT-PCR diagnostic assay;


  • All sample types collected at follow-up are negative by a validated SARS-CoV-2 RT PCR diagnostic assay.

Epidemiological investigation of SARS-CoV-2 test-positive companion animals

At this time, the risk of companion animals, including pets, spreading SARS-CoV-2 to people is considered to be low. However, understanding the epidemiological context of the case including human-animal interactions is important to furthering our understanding of how this virus may circulate and transmit under natural conditions, which is necessary to inform public health and animal health measures. Investigations for animal cases that meet CDC’s criteria for SARS-CoV-2 testing may be particularly valuable for understanding this epidemiological context. Ideally, epidemiological investigations should be jointly conducted between local, state, and federal One Health partners. Investigation should begin when the case is identified to ensure expedient public health recommendations are issued. Investigation guidance will continue to be updated based on the most recent scientific information.

When a companion animal tests positive for SARS-CoV-2, an epidemiological investigation should be conducted. This investigation should include the following components:

  • Description of the diagnostic and clinical factors used to make the case determination;
  • Assessment of risk factors in the test-positive animal, including potential source of infection;
  • Evaluation of potentially exposed people; and
  • Evaluation of potentially exposed animals.

CDC’s One Health Case Investigation Form for Animals with SARS-CoV-2 is a standardized data collection tool for animal investigations that can be completed through HHSProtectexternal icon. Please contact CDC’s COVID-19 One Health Office at [email protected] for additional guidance and resources on conducting an epidemiological investigation.

At this time there are no additional precautions recommended for people or animals with potential contact with test-positive animals, aside from animal caretakers. Identifying potential contacts (human or animal) and documenting their health status could help inform the public health risk of these zoonotic SARS-CoV-2 events. Should the risk associated with test-positive animal contacts change, additional precautions may be indicated.


SARS-CoV-2: The scientific name for the virus that causes coronavirus disease 2019 (COVID-19) in people. Because we are addressing the virus itself in the context of animal health, we refer to it as SARS-CoV-2.

Companion animals: Refers to mammalian companion animals, such as dogs, cats, small mammal pets including ferrets and hamsters, and others that live in a home or on the premises of a home, including service animals.

Test-positive animal: Refers to animals with a presumptive or confirmed diagnosis of SARS-CoV-2 pdf icon[740 KB, 2 pages]external icon.

State public health veterinarian: Refers to the state public health veterinarianpdf iconexternal icon (SPHV) or designated public health official responsible for handling animal-related public health issues in their jurisdiction. Some jurisdictions do not have state public health veterinarians, or geographic, resource, or time limitations may prevent them from managing a situation involving an animal.

State animal health official: Refers to the state animal health officialexternal icon responsible for animal disease control and eradication programs in their jurisdiction. Where possible, coordination, information-sharing, and decision-making between relevant partners, including the state public health veterinarian and state animal health official, is recommended.