Abstract
We describe the clinical, serologic, and molecular findings of a new human rickettsiosis in Colombia. Antibodies against Rickettsia spp. were detected. PCR showed amplification of genes for R. parkeri strain Atlantic Rainforest. This new rickettsiosis of minor virulence could explain some of the undifferentiated acute febrile diseases in Colombia.
Highlights
We describe the clinical, serologic, and molecular findings of a new human rickettsiosis in Colombia
Prevalence of antibodies to spotted fever group (SFG) rickettsiae of 25.6% among healthy residents of several areas in Colombia suggests contact of persons with less-virulent SFG rickettsiae, such as Rickettsia parkeri, which has previously been reported in Colombia in ticks of the species Amblyomma ovale, and R. amblyommatis, previously reported in A. cajennense ticks [5,6,7]
In 2004, a new SFG human infection attributed to R. parkeri sensu stricto was described in the United States [10]; later, Spolidorio et al described a patient in Brazil with a clinically identical moderate febrile condition, with myalgia, arthralgia, and eschar, caused by a strain of R. parkeri designated Atlantic Rainforest [11]
Summary
Serologic, and molecular findings of a new human rickettsiosis in Colombia. The Case A previously healthy 47-year-old male farmer who lived in a rural area near the village of Puerto López in the district of Turbo, Department of Antioquia, Colombia, came to a clinic in Apartadó with a 5-day history of fever.
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