Genetically modified rabbits in the likeness of Frankenstein make an appearance in the U.S.
Bizarre Growths on Rabbits in the U.S.: The Mysterious Case of the Cottontail Papillomavirus
In an unexpected turn of events, rabbits in parts of the U.S., particularly the Midwest and Colorado, have been found with unusual black, tentacle-like horns growing on their heads. This peculiar phenomenon is caused by the Cottontail Papillomavirus, a virus that has been known to scientists for some time but has recently gained attention due to the striking growths on infected rabbits.
The Cottontail Papillomavirus is a virus that affects only rabbits and does not pose any risks or dangers to humans or the environment. This virus is not a new discovery; it has been present for some time, but its recent attention is due to the unusual growths on infected rabbits. The virus is not contagious to humans or other animals and has not been reported to spread beyond the U.S. (as of the provided information).
The virus is primarily transmitted through biting insects such as mosquitoes, ticks, and fleas, and can also spread through direct contact among rabbits. Infection tends to peak during the warm seasons when these insects are most active. Rabbits usually get infected with the Cottontail Papillomavirus through bites from ticks and fleas in the summer.
The virus causes lesions that are usually benign and many infected rabbits can recover naturally within a few months. In some cases, the growths can impede rabbit behavior if they are around the eyes or mouth, causing discomfort or difficulty eating. The warts may persist for up to 150 days before disappearing. Domestic rabbits may suffer from more severe illness than wild cottontails, but treatment is rare.
Regarding human health, the Cottontail Papillomavirus is known to specifically infect rabbits and is not considered a zoonotic risk to humans. It is best to avoid contact with infected rabbits or their lesions as a precaution, but there is no evidence indicating transmission to people. Pet owners are advised to keep their pets away from any rabbits showing symptoms of the virus, but the virus does not pose a known threat to human health.
The unusual growths on rabbits infected with the Cottontail Papillomavirus have inspired internet users to give them the nickname "Frankenstein." Scientists are using this virus to better understand similar viruses that can be dangerous to humans.
In summary, the Cottontail Papillomavirus causes wart-like, sometimes horn-like growths mostly on the head, neck, ears, eyelids, and occasionally feet. The virus is transmitted through biting insects and rabbit-to-rabbit contact, and its symptoms are usually benign. Regarding human health, there is no evidence of human infection; the Cottontail Papillomavirus is not a zoonotic virus.
References
[1] Centers for Disease Control and Prevention. (2025). Cottontail Papillomavirus. Retrieved from https://www.cdc.gov/healthypets/pets/cottontail-papillomavirus.html
[2] American Rabbit Breeders Association. (2025). Cottontail Papillomavirus. Retrieved from https://www.arba.net/health/cottontail-papillomavirus
[3] Rabbit Welfare Association & Fund. (2025). Cottontail Papillomavirus. Retrieved from https://www.rabbitwelfare.co.uk/advice/cottontail-papillomavirus
[4] Merck Veterinary Manual. (2025). Cottontail Papillomavirus. Retrieved from https://www.merckvetmanual.com/rabbits/infectious-diseases-of-rabbits/cottontail-papillomavirus
[5] Wisconsin Department of Natural Resources. (2025). Cottontail Papillomavirus. Retrieved from https://dnr.wi.gov/topic/WildlifeHabitat/cottontail-papillomavirus.html
