Tag Archives: Plague

Northern AZ prairie dog burrows dusted to combat plague near Williams, Flagstaff

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FLAGSTAFF — The Arizona Game and Fish Department, together with the Kaibab National Forest Williams Ranger District, recently applied insecticidal dust Williams and Flagstaff-area Gunnison prairie dog holes for fleas.

Last month fleas tested near the Red Lake area north of Williams tested positive for plague, a potentially fatal disease that could eradicate prairie dog colonies and other infected animals. Plague-infected fleas were also recently found at an AZGFD research plot at Garland Prairie near Flagstaff.

“Unfortunately, it has been a very busy year for plague,” said Holly Hicks, a small mammals biologist with AZGFD. “An infestation can prove detrimental for prairie dog populations because they are highly communal animals, and the disease spreads easily in a colony. That is why it is important for us to identify an infected colony and dust it with insecticide to reduce the risk of infection to other animals and people.”

Crews recently dusted prairie dog holes across 664 acres near Red Lake about 10 miles north of Williams.

On September 3, an AZGFD biologist found a deceased prairie dog, which tested positive for plague near Garland Prairie. To prevent the spread, an additional 800 acres were dusted, including around plots currently being used for sylvatic plague vaccine research.

The disease is carried by fleas which spread the disease through host animals. While prairie dogs are host to fleas, the fleas can remain in the burrow after their host dies and attach themselves to the next host that comes along, which may or may not be another prairie dog.

Badgers, coyotes and foxes are also host to fleas and are more likely to cause a widespread outbreak of the disease because they travel further distances.

Those in areas where plague and/or rodents are known to be present are urged to take the following precautions to reduce their risk of exposure:

  • Do not handle sick or dead animals.
  • Prevent pets from roaming loose. Pets can pick up the infected fleas. De-flea pets routinely. Contact your veterinarian for specific recommendations.
  • Avoid rodent burrows and fleas.
  • Use insect repellents when visiting or working in areas where plague might be active or rodents might be present (campers, hikers, woodcutters and hunters).
  • Wear rubber gloves and other protection when cleaning and skinning wild animals.
  • Do not camp near rodent burrows and avoid sleeping directly on the ground.
  • In case of illness see your physician immediately as treatment with antibiotics is very effective.

More information is available at https://www.cdc.gov/plague/.

Fleas test positive for plague in Coconino County

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RED LAKE – Coconino County Public Health Services District (CCPHSD) officials confirmed that fleas collected in the Red Lake area, approximately five miles northeast of Williams, tested positive for plague (Yersinia pestis). The tests were conducted by the Center for Pathogen and Microbiome Institute at Northern Arizona University.

CCPHSD is notifying area residents. The burrows are being treated and the area will be closely monitored to determine if further action is required.

This is the first location in the County where fleas have tested positive for plague this year. Because the disease is endemic in Coconino County, there are likely additional locations with infected fleas. CCPHSD Environmental Health staff will continue to collect and test flea samples from locations throughout the County.

CCPHSD is urging the public to take precautions to reduce their risk of exposure to this serious disease, which can be present in fleas, rodents, rabbits and predators that feed upon these animals. The disease can be transmitted to humans and other animals by the bite of an infected flea or by direct contact with an infected animal. To limit possible exposure, people are encouraged to avoid rodent burrows and keep dogs on a leash as required by Arizona State law.

An abundance of active prairie dogs doesn’t indicate disease is present. However, a sudden die-off of prairie dogs and rodents, may be an indicator of plague. Persons noticing a sudden die-off of rodents or rabbits are urged to contact CCPHSD Environmental Services at 928-679-8750.

Symptoms of plague in humans generally appear within two to six days following exposure and include the following:  fever, chills, headache, weakness, muscle pain, and swollen lymph glands (called “buboes”) in the groin, armpits or limbs. The disease can become septicemic (spreading throughout the bloodstream) and/or pneumonic (affecting the lungs), but is curable with proper antibiotic therapy if diagnosed and treated early.

Persons living, working, camping or visiting in areas where plague and/or rodents are known to be present are urged to take the following precautions to reduce their risk of exposure:

  1. Do not handle sick or dead animals.
  2. Prevent pets from roaming loose. Pets can pick up the infected fleas of wild animals, and then pass fleas on to their human owners. This is one of the common ways for humans to contract plague. Cats with plague can also pass the disease on to humans directly thorough respiratory droplets.
  3. De-flea pets routinely. Contact your veterinarian for specific recommendations.
  4. Avoid rodent burrows and fleas.
  5. Use insect repellents when visiting or working in areas where plague might be active or rodents might be present (campers, hikers, woodcutters and hunters).
  6. Wear rubber gloves and other protection when cleaning and skinning wild animals.
  7. Do not camp next to rodent burrows and avoid sleeping directly on the ground.
  8. Be aware that cats are highly susceptible to this disease and while they can get sick from a variety of illnesses, a sick cat (especially one allowed to run at large outside) should receive care by a veterinarian for proper diagnosis and treatment to reduce human exposure to plague.
  9. In case of illness see your physician immediately as treatment with antibiotics is very effective.

 

More information is available at https://www.cdc.gov/plague/.

Fleas Test Positive for Plague in Picture Canyon

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640px-HookeFlea01FLAGSTAFF — Coconino County Public Health Services District (CCPHSD) officials confirmed that fleas collected in Picture Canyon, a popular hiking area located in northeast Flagstaff, tested positive for plague (Yersinia pestis).

Picture Canyon is located east of Highway 89 North, and north of Interstate 40 and Old Route 66.

The tests were recently conducted by the Center for Microbial Genetics and Genomics at Northern Arizona University.

CCPHSD Environmental Health staff collects and tests flea samples from locations throughout the County. The recent samples were collected from burrows located along the Picture Canyon hiking trails. Visitors to the area are asked to avoid rodent burrows and keep dogs on a leash as required by Arizona State law.

The CCPHSD and the City of Flagstaff have notified nearby residents of the situation and posted signage at the trailheads. The burrows are being treated and the area will be closely monitored to determine if further action is required.

This positive test is the first evidence of plague activity reported in the County this year. While this is the only location within the County where the plague has been confirmed, the disease is endemic to areas throughout the County and may be more widespread.

The CCPHSD is urging the public to take precautions to reduce their risk of exposure to this serious disease, which can be present in rodents, rabbits, and sometimes predators that feed upon these animals. The disease can be transmitted to humans and other animals by the bite of an infected flea or by direct contact with an infected animal.

Symptoms in humans generally appear within two to six days following exposure and include the following: fever, chills, headache, weakness, muscle pain, and swollen lymph glands (called “buboes”) in the groin, armpits, or limbs. The disease can become septicemic (spreading throughout the bloodstream) and/or pneumonic (affecting the lungs), but is curable with proper antibiotic therapy if diagnosed and treated early.

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