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Ground Squirrel Tested Positive For Plague In Angeles National Forest

Posted by: KHTS FM 98.1 & AM 1220 in Santa Clarita News July 25, 2013 - 1:01 pm 0 139 Views

The U.S. Forestry Service and Los Angeles County Department of Public Health officials closed Broken Blade, Twisted Arrow, and Pima Loops of the Table Mountain Campgrounds in the Angeles National Forest after one ground squirrel tested positive on July 23 for plague.

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The squirrel was trapped on July 16 in a routine surveillance activity. The campsites were closed on Wednesday at 1:00 P.M. and are set to be closed for the next week.

Forest Service officials have notified all Campers at the sites of the closure. The campgrounds and recreational areas are located near Wrightwood, about 70 miles from Santa Clarita.

Squirrel burrows will be dusted for fleas by the Los Angeles County Department of Agriculture/ Weights and Measures. Further testing of the squirrels will be done before the area is re-opened to the public.

“Plague is a bacterial infection that can be transmitted to humans through the bites of infected fleas, which is why we close affected campgrounds and recreational areas as a precaution while preventive measures are taken to control the flea population,” said Jonathan E. Fielding, M.D., M.P.H., Director of Public Health and Health Officer. “It is important for the public to know that there have only been four cases of human plague in Los Angeles County residents since 1984, none of which were fatal.”

Plague has been known to reside in the ground squirrels population in the San Gabriel Mountains.

Previous routine surveillance identified one plague-positive ground squirrel in 2010 from the Los Alamos campgrounds in Gorman; one in 2007 and two in 1996 from the Stoneyvale Picnic Area near La Cañada/Flintridge; and one plague-positive ground squirrel from an adjacent campground in Vogel Flats in 1995.

Transmission of plague through flea bites causes bubonic plague, with symptoms including enlargement of lymph glands (buboes) near the flea bite and rapid onset of fever and chills.

Untreated bubonic plague can progress to infection of the blood, or rarely, the lungs, causing pneumonic plague.

All forms of the disease can be fatal if not treated; however, most patients respond well to antibiotic therapy.

Individuals visiting recreational areas near the Broken Blade, Twisted Arrow, and Pima Loops of the Table Mountain Campgrounds need to take certain precautions to avoid contact with wild animals that could be carrying plague-positive fleas.

Visitors to recreational areas should not feed wild animals, not leave edible trash out where wild animals can get to it, avoid camping or picnicking in the immediate vicinity of ground squirrel burrows, and should avoid taking pets into areas where they could be exposed to fleas.

If you must take your pet into areas with fleas, please ensure your pet has appropriate flea control and vaccinations, as recommended by a veterinarian.

“Protection with an insect repellant containing DEET is also recommended for persons visiting the Angeles National Forest and engaging in outside recreational activities in other areas of LA County,” said Dr. Fielding. “Insect repellant can help protect people against fleas, mosquitoes, and ticks. Products containing DEET are not safe for use on pets.”

Members of the public who see dead ground squirrels in recreational areas, or who want more information about precautions should contact the LA County Department of Public Health, Vector Management Program at (626) 430-5450.

The Department of Public Health is committed to protecting and improving the health of the nearly 10 million residents of Los Angeles County.

Through a variety of programs, community partnerships and services, Public Health oversees environmental health, disease control, and community and family health.

Public Health comprises nearly 4,000 employees and has an annual budget exceeding $750 million.

To learn more about Public Health and the work we do please visit http://www.publichealth.lacounty.gov, visit our YouTube channel at http://www.youtube.com/lapublichealth, find us on Facebook at http://www.facebook.com/lapublichealth, or follow us on Twitter: @LAPublicHealth.

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