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Rocky Mountain spotted fever occurs mainly from March to September, when adult ticks are active and people are likely to be in tick-infested areas. In the southern states, the disease may occur throughout the year. The infection is more common among people who spend a lot of time in tick-infested areas and among children younger than 15.
Suggested citation for this article: Biggs HM, Behravesh CB, Bradley KK, et al. Diagnosis and Management of Tickborne Rickettsial Diseases: Rocky Mountain Spotted Fever and Other Spotted Fever Group Rickettsioses, Ehrlichioses, and Anaplasmosis — United States.
The epidemic struck St. Louis, Missouri, in early 1849, and by the end of summer, estimates of the dead ranged from 4,500 to 6,000. During the 1849 California Gold Rush, travelers carried the bacteria along the Santa Fe Trail and other overland routes. The epidemic thrived in the unsanitary conditions along the trails, peaking in 1850 as it was ...
Abstract. Rocky Mountain spotted fever, a tick-borne zoonosis caused by Rickettsia rickettsii, is among the most lethal of all infectious diseases in the Americas. In Mexico, the disease was first described during the early 1940s by scientists who carefully documented specific environmental determinants responsible for devastating outbreaks in ...
Sep 25, 1975 · A review of Rocky Mountain spotted fever (tick-borne typhus), its agent, and its tick vectors in the United States J Med Entomol . 1975 Sep 25;12(3):269-78. doi: 10.1093/jmedent/12.3.269.
A computer model was developed for simulation of the transmission of Rickettsia rickettsii, the causative agent of Rocky Mountain spotted fever (RMSF), by the American dog tick, Dermacentor variabilis (Say). The model of RMSF was combined with a model for population dynamics of the American dog tick …
In October 2004, CDC's Viral and Rickettsial Zoonoses Branch, in consultation with 11 clinical and academic specialists of Rocky Mountain spotted fever, human granulocytotropic anaplasmosis, and human monocytotropic ehrlichiosis, developed guidelines to address the need for a consolidated source for the diagnosis and management of TBRD.
