Rocky Mountain Spotted Fever/ Rickettsia (RMSF) Rocky Mountain Spotted Fever/Rickettsia (RMSF) is most often transmitted by the American dog tick in the Eastern, Central and Western United States; by ...
When an infected tick bites someone, it transmits Rickettsia rickettsii bacteria ... Veterinarian Johanna Salzer checks dogs on the San Carlos Apache Nation in Arizona for brown dog ticks. She works ...