Dogs and cats are not known to contract hantavirus in the United States. They do not typically become ill from exposure, and they cannot directly transmit the virus to people. The real risk to your family comes from the rodents your pet may encounter, not from your pet itself.
Hantavirus has received significant national attention following the death of Betsy Arakawa, wife of actor Gene Hackman, from hantavirus pulmonary syndrome (HPS) in early 2025. As a result, many pet owners across Oklahoma are asking whether their dogs and cats face any risk.
The concern is understandable. Pets spend time outdoors, encounter wildlife, and bring the outside world into our homes. Knowing where the actual risk lives matters.
Hantavirus pulmonary syndrome is a severe respiratory illness caused by hantaviruses carried by certain wild rodents. According to the Centers for Disease Control and Prevention, HPS is fatal in nearly 4 in 10 people who become infected. There is currently no cure.
People contract hantavirus by breathing in air contaminated with the urine, feces, or saliva of infected rodents. Even disturbing dry droppings by sweeping can send infectious particles into the air.
In North America, the primary carrier is the deer mouse. House mice and most pet store rodents do not carry hantavirus.
Dogs and cats are not known to become sick from hantavirus. The CDC states that dogs and cats in the United States are not considered hantavirus carriers and cannot spread the virus to people.
Some public health agencies note that pets can be exposed to the virus when hunting infected rodents. Even in those cases, pets do not develop symptoms and do not pass the virus along directly.
The indirect risk is what matters. A dog or cat that hunts mice and brings them home can place rodent urine, saliva, or droppings in close proximity to their family.
Outdoor pets that hunt rodents may create hantavirus exposure risk for their owners in a few ways:
If your pet is an active outdoor hunter, handle any rodents they bring home with gloves and a mask. Avoid dry sweeping the area. Wet the surface with a bleach solution first, let it sit, then clean carefully.
Symptoms in people typically appear one to eight weeks after exposure. Early signs resemble the flu and can progress rapidly:
If you or a family member develop these symptoms after possible rodent exposure, seek human medical care immediately. This is a public health emergency, not a veterinary one.
Yes. While hantavirus poses little direct risk to dogs and cats, other rodent-associated diseases can affect pets directly. These include:
If your pet regularly hunts rodents or has outdoor exposure, talk with your primary care veterinarian about preventive measures. For complex or difficult-to-diagnose illnesses, your vet may refer your pet to a board-certified internal medicine specialist.
If your pet has had contact with wild rodents and begins showing signs of illness that your primary veterinarian cannot quickly resolve, a referral to a board-certified internal medicine specialist may be appropriate.
At Oklahoma Veterinary Specialists in Tulsa, our internal medicine team diagnoses and treats complex conditions involving the gastrointestinal, respiratory, urogenital, endocrine, and hematologic systems. Infections with systemic effects, such as leptospirosis, often require the advanced diagnostics and coordinated care that a specialty hospital provides.
We also provide emergency care 24 hours a day, 7 days a week, 365 days a year. No appointment is needed for emergencies. If your pet becomes suddenly ill and your regular veterinarian is unavailable, we are here.
Keeping rodents away from your home is the most effective way to protect both your family and your pets. The CDC recommends the following steps:
Oklahoma Veterinary Specialists is the region's most comprehensive multi-specialty referral hospital, with board-certified specialists in Internal Medicine, Surgery, and Ophthalmology serving pets across Oklahoma. Our emergency team is available around the clock, every day of the year.
Oklahoma Veterinary Specialists delivers 24-hour emergency care and board-certified specialty services with advanced technology and compassionate treatment.
