Rabbits do not get the flu in any meaningful way. Human influenza viruses are not a recognized natural disease of domestic rabbits, and there are no documented cases of pet rabbits catching the flu from their owners. While laboratory studies have shown that influenza A virus can cause localized infection when directly injected into rabbit tissue, this does not happen through normal contact or airborne exposure in a household setting.
That said, rabbits absolutely do get respiratory infections that can look a lot like the flu. Sneezing, nasal discharge, lethargy, and loss of appetite are common signs of bacterial respiratory disease in rabbits, and these symptoms are what most owners are actually noticing when they wonder if their rabbit “caught the flu.”
Why Rabbits Don’t Catch Human Flu
Influenza viruses are picky about which species they infect. The virus needs to latch onto specific receptors in the airways, and rabbit respiratory cells don’t have the right configuration to allow human flu strains to take hold naturally. In one laboratory experiment, influenza A (H3N2) only caused visible disease in rabbits when it was injected directly into the eye chamber, a route that bypasses the normal respiratory defenses entirely. No study has demonstrated that rabbits develop flu-like illness from breathing in the virus the way humans, ferrets, or pigs do.
For context, some viruses can jump from humans to animals. COVID-19, for example, was documented spreading from a pet owner to domestic rabbits in France through close contact. But influenza has not followed this pattern with rabbits, and veterinary authorities do not list it as a concern for rabbit owners during flu season.
What Actually Causes Flu-Like Symptoms in Rabbits
The condition most commonly mistaken for the flu in rabbits is called “snuffles,” a bacterial respiratory infection most often caused by Pasteurella multocida, sometimes in combination with Bordetella bronchiseptica. Snuffles is extremely common. It typically starts in the upper airways and produces symptoms that look deceptively similar to a human cold or flu: sneezing, audible snoring or rattling sounds, and a nasal discharge that starts thin and clear before turning thick, white, or yellowish.
One telltale sign is matted fur on the face and front paws. Rabbits groom their faces with their forepaws, so nasal discharge gets wiped onto the paws and dries into a yellowish-gray crust. You may also notice excessive tearing, crusty nostrils, or red, irritated eyes if the infection spreads to the tear ducts or conjunctiva.
Other causes of sneezing and nasal discharge include myxoma virus, herpesvirus, nasal allergies, exposure to tobacco smoke or aerosol sprays, dusty bedding, and moldy hay. A vet cannot determine the exact cause from symptoms alone, so a culture or other diagnostics are typically needed to identify what’s driving the infection.
When Respiratory Symptoms Become Dangerous
Rabbits are obligate nasal breathers, meaning they can only breathe through their nose under normal circumstances. This makes any nasal obstruction far more serious in a rabbit than it would be in a dog or cat. If mucus or swelling blocks the nasal passages, a rabbit can go into severe respiratory distress quickly.
Early snuffles may seem mild: occasional sneezing, a little clear discharge. But the infection can spread from the upper airways into the lungs, causing pneumonia. Signs of lower respiratory involvement include loss of appetite, weight loss, visible fatigue or depression, rapid breathing, and pale or bluish gums. Open-mouth breathing is a late and serious sign that indicates the rabbit is struggling to get enough air. At that point, the situation can become fatal without prompt intervention.
How Rabbit Respiratory Infections Are Treated
Treatment depends on identifying the cause, but since bacterial infection is by far the most common culprit, vets generally start antibiotic therapy right away. The course of treatment is long compared to what most pet owners expect. A minimum of 14 days is standard, and in stubborn or severe cases, treatment can stretch to two or three months.
Rabbits have sensitive gut bacteria, so not all antibiotics are safe for them. Certain classes of antibiotics that are perfectly fine for dogs and cats can cause fatal digestive disruption in rabbits. This is one reason it’s important to work with a vet experienced in rabbit medicine rather than guessing at treatment.
At home, nebulizing with saline (using an ordinary store-bought nebulizer) can help loosen mucus and make breathing easier. Removing environmental irritants makes a real difference too: swap out dusty bedding, discard any moldy hay, and improve ventilation around the rabbit’s living area.
A More Serious Threat: Rabbit Hemorrhagic Disease
While the flu isn’t a concern, there is a deadly viral disease that rabbit owners should know about. Rabbit hemorrhagic disease virus type 2 (RHDV2) has been spreading in wild and domestic rabbit populations across the United States and other countries. It is not related to influenza, but it can cause respiratory signs along with fever and reluctance to eat. In many cases, the only sign is sudden death, sometimes with a blood-stained nose caused by internal bleeding.
RHDV2 is highly contagious between rabbits and is nearly always fatal. Vaccines are available in some regions, so checking with your vet about availability is worthwhile, especially if you live in an area where the virus has been reported.
Keeping Your Rabbit’s Airways Healthy
Good husbandry is the most effective way to prevent respiratory problems. Use low-dust bedding (avoid cedar and pine shavings, which can irritate airways). Store hay properly to prevent mold, and avoid hay from open outdoor sources where contamination is more likely. Keep your rabbit’s living space well ventilated but away from drafts, direct sun, and temperature extremes. Rabbits are very sensitive to heat, so adequate shade and airflow are essential.
If you’re bringing a new rabbit home, have it examined by a vet as soon as possible. Ideally, source rabbits from breeders who screen for Pasteurella, though that’s not always an option. New rabbits should be kept separate from existing pets for a quarantine period, since Pasteurella and other respiratory bacteria spread easily between rabbits through direct contact and shared airspace.