Jefferson County, Colo. — On Saturday, July 11, 2020, a squirrel found in the Town of Morrison tested positive for bubonic plague. The squirrel is the first case of plague in the county this year. Plague is an infectious disease caused by the bacteria Yersinia pestis, and can be contracted by humans and household animals if proper precautions are not taken.
Humans may be infected with plague through bites from infected fleas, by the cough from an infected animal or by direct contact (e.g., through a bite) with blood or tissues of infected animals. Cats are highly susceptible to plague and may die if not treated promptly with antibiotics. Cats can contract plague from flea bites, a rodent scratch/bite or ingestion of a rodent. Dogs are not as susceptible to plague; however, they may pick up and carry plague-infected rodent fleas. Pet owners who suspect their pets are ill should consult a veterinarian. All pet owners who live close to wild animal populations, such as prairie dog colonies or other known wildlife habitats, should consult their veterinarian about flea control for their pets to help prevent the transfer of fleas to humans.
Symptoms of plague may include sudden onset of high fever, chills, headache, nausea and extreme pain and swelling of lymph nodes, occurring within two to seven days after exposure. Plague can be effectively treated with antibiotics when diagnosed early. Anyone experiencing these symptoms should consult a physician.
Jefferson County Public Health (JCPH) recommends the following precautions be taken to protect yourself and your pets from plague. Risk for getting plague is extremely low as long as precautions are taken.
To learn more about animal-borne diseases in Jefferson County, including bubonic plague, please visit www.jeffco.us/2368.
About Jefferson County Public Health
Public health is what we as a society do collectively to prevent illness and premature death and promote health in our neighborhoods and communities. Jefferson County Public Health (JCPH) is a nationally accredited health department committed to promoting and protecting health across the lifespan for all people through prevention, education and partnerships. To learn more about JCPH visit https://www.jeffco.us/public-health. You can also follow JCPH on Twitter @JeffcoPH, Instagram @JeffcoPH and Facebook @jeffcopublichealth.
There have been many stories circulating about the recent case of plague in a squirrel in Jefferson County. We want to provide some clarification and answer some questions we have received from the public and media. As always with public notices regarding animal-borne diseases — such as plague, tularemia and rabies — our purpose is to inform the community the disease is present in an animal population, so you can take necessary precautions to keep your family and pets safe.