Press release from N.C. Wildlife Resources Commission:
Biologists with the N.C. Wildlife Resources Commission are asking the public to help them monitor the potential spread of a deadly rabbit disease that has not yet been observed in North Carolina’s rabbit populations by reporting any sightings of dead rabbits to the agency.
Commission biologists are working with the N.C. Department of Agriculture and Consumer Services (NCDA&CS) to monitor the spread and impacts of Rabbit Hemorrhagic Disease Virus Serotype 2 (RHDV2), a fatal disease that affects both domestic and wild rabbit populations. RHDV2 is extremely lethal. There is no cure for wild rabbits and a vaccine for domestic rabbits is not readily available in the United States. RHDV2 is classified as a foreign animal disease in the United States and currently, is primarily found in southwestern United States. People can spread the virus indirectly by carrying it on their clothing and shoes, but RHDV2 does not impact human health.
While RHDV2 has not been observed in North Carolina’s rabbit populations yet, agency biologists are asking the public and hunters to report any sightings of one or more dead wild rabbits where the death is not readily apparent or those found with blood around their nose, mouth or rectum. Anyone who finds a dead rabbit should refrain from touching it unless necessary and call the Commission’s Wildlife Helpline 866-318-2401, or email, wildlifehelpline@ncwildlife.org. The Commission will rely on reports of rabbit mortalities to document the disease’s occurrence and potential spread in North Carolina.
The NCDA&CS asks rabbit owners who observe unexplained deaths in their domestic rabbits to contact their veterinarian or the NCDA&CS at 919-707-3250. Domestic rabbit owners are also encouraged to follow proper quarantine protocols when introducing a new rabbit and keep domestic rabbits from any potential contact with wild rabbits.
The NCDA&CS also reminds rabbit owners when moving rabbits from other states into North Carolina, a health certificate or Interstate Certificate of Veterinary Inspection is required. Obtaining a health certificate from a veterinarian prior to bringing a rabbit into North Carolina will help protect the state’s rabbit industry.
This latest outbreak began in March 2020. As of September, confirmed mortalities have occurred in multiple wild and domestic lagomorphs, which includes rabbits, hares and pikas, in seven western/southwestern states. While there have been isolated cases of RHDV2 in domestic rabbits in the eastern United States, those isolated cases are not epidemiologically related to the widespread outbreak in the southwest. Should the current disease outbreak make its way to the east coast, the Commission is concerned about its potential impact to native rabbit populations, particularly the Appalachian cottontail that is found only in the western part of the state at higher elevations. The Appalachian cottontail is a designated a species of concern by the U.S. Fish and Wildlife Service and classified as vulnerable to critically imperiled throughout most of its range.
ABOUT RHDV2
RHDV2 is highly contagious with mortality occurring within nine days after infection. Many times, the only signs of the disease are sudden death and blood-stained noses caused by internal bleeding. Infected rabbits may also develop a fever, be hesitant to eat, or show respiratory or nervous signs such as difficulty breathing, lack of coordination or paralysis. The RHDV2 virus is very resistant to environmental extremes, surviving temperatures below freezing to above 120 degrees Fahrenheit. It can be spread through direct contact with other living or dead rabbits, exposure to an infected rabbit’s excretions or blood, or contracted through mechanical vectors such as flea and fly bites. The virus can also spread from carcasses, food, water and any contaminated materials. There is no cure or vaccine for wild rabbits.
Visit the agency’s webpage on RHDV2 for more information.
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