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DENVER - State health officials say they have confirmed pneumonic plague in a Colorado resident and a pet dog.
The Colorado Department of Public Health and Environment laboratory on Tuesday confirmed the disease in the resident, agency spokesman Mark Salley said Wednesday.
A public health investigation revealed the family dog had recently died unexpectedly. The dog's carcass was recovered and tested at the Colorado State University Veterinarian Diagnostic Laboratory, where tests were positive for the plague.
The patient has been hospitalized, Salley said. The patient and the dog may have been exposed to the plague in eastern Adams County, he added.
It is spread by fleas on rodents, most commonly prairie dogs, he said. People walking in open spaces and trails should avoid contact with rodents.
Tri-County Health Department officials and the state health agency are working together to investigate the source of exposure and to identify those who may have been exposed through close contact with the individual. Any individuals exposed will be recommended for antibiotic treatment.
Dr. Jennifer House, public health veterinarian at the Colorado Department of Public Health and Environment, encourages people take the following precautions to prevent plague exposure:
Do not directly handle any dead rodents.
Keep pets away from wildlife, especially dead rodents.
Don’t let dogs or cats hunt prairie dogs or other rodents.
Don't allow pets to roam freely.
Treat all pets for fleas according to a veterinarian's advice.
Do not feed prairie dogs or other rodents -- this attracts them to your property, brings them in close contact with other rodents and increases the risk of disease transmission.
Be aware of rodent populations in your area and report sudden die-offs or multiple dead animals to your local health department.
Contact your physician if you develop a high fever and other plague symptoms following a fleabite or direct contact with dead rodents. Symptoms of plague include a sudden onset of high fever, muscle pain, malaise, nausea and vomiting, or a general feeling of being ill. Individuals with bubonic plague will develop a large, swollen, painful lymph node in the area of a flea bite, usually in the groin or armpit. If untreated, the disease can enter the bloodstream or lungs, which are severe, life-threatening complications.
Individuals with pneumonic plagues (the lung form) develop fever, headache, weakness, shortness of breath, chest pain, cough which can lead to respiratory failure. Pneumonic plague is the most serious form of the disease and is the only form of plague that can be spread from person to person (by infectious droplets from coughing). Although human cases occur infrequently, plague is severe and potentially life-threatening if not detected and quickly treated with common antibiotics.
Plague often is identified when there is an unusual die-off of prairie dogs in an area. When an infected animal dies, the fleas leave the carcass to find another host, thus spreading the disease. Most human plague cases occur when humans are bitten by infected fleas. Less commonly, people are infected by direct contact with blood or tissues from an infected animal or from pets that become infected and transmit the disease.
Since 1957, Colorado has identified 60 cases of human plague, including nine cases -- or 15 percent -- which were fatal.
Additional information on plague can be found at: http://www.cdc.gov/plague
Contact CO-HELP (Colorado Health Education Line for the Public) at 1-877-462-2911 for more information or to report a dead prairie.