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Rocky Mountain Spotted Fever

Rocky Mountain Spotted Fever. Ricketsia rickettsii Chris Bednar. What Is It?. Bacterial Tick borne American dog tick ( Dermacentor variabilis ) Brown dog tick ( Rhipicephalus sanguineus ) Rocky Mountain wood tick ( Dermacentor andersoni ) Host to host transfer. Where is it?.

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Rocky Mountain Spotted Fever

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  1. Rocky Mountain Spotted Fever Ricketsiarickettsii Chris Bednar

  2. What Is It? • Bacterial • Tick borne • American dog tick (Dermacentor variabilis) • Brown dog tick (Rhipicephalus sanguineus) • Rocky Mountain wood tick (Dermacentor andersoni) • Host to host transfer

  3. Where is it? • Tall grass, wooded areas • Eastern US • Discovered in Rocky Mountains • Red states – 60% • Only about 100 cases reported per year • Human and domestic fatality down to 1%

  4. What Happens? • Flu-like symptoms • Characteristic “spotting” • 10% not affected • Red or purple • Abdominal pain • Challenging to diagnose • Similar to other bacterial and viral infections • Similar to other tick borne diseases • Not just in humans • More challenging in animals

  5. Who Is Affected? • Host species • Opossums • Rabbits • Squirrels • Rodents • Domestic Animals • Dogs • Cats • Cows • Horses • Other Common Species • Deer • Skunk • Woodchucks • Beavers • Foxes • Wolves • Coyotes • Humans • Etc.

  6. Let’s Take a Look

  7. Treatment Most wildlife go untreated Doxycycline in humans and dogs Prophylaxis as preventative Antibiotics not effective as protection

  8. Questions?

  9. References Control, C. f. (2011, January 18). Rocky Mountain Spotted Fever. Retrieved February 14, 2011, from The Center for Disease Control: http://www.cdc.gov/rmsf/index.html Health, V. P. (2007, April). Veterinarian’s Brief: Suspected Rocky Mountain Spotted Fever in 4 Los Angeles County Dogs. Retrieved February 14, 2011, from LA Public Health: http://publichealth.lacounty.gov/vet/Rockymountainspottedfever.htm

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