prevalence of spotted fever group rickettsia species detected in ticks in la rioja, spain.our objective was to learn the prevalence of spotted fever group (sfg) rickettsia detected in ticks in la rioja, in the north of spain. from 2001 to 2005, 496 ticks representing 7 tick species were analysed at the hospital de la rioja. ticks were removed from humans with or without rickettsial syndrome (n = 59) or collected from mammals (n = 371) or from vegetation by dragging (n = 66). the presence of sfg rickettsia in these ticks was investigated by semi-nested pcr (ompa gene) and sequencing. ...200617114730
rickettsia slovaca infection: debonel/tibola.this study describes the epidemiological, clinical, and microbiological characteristics of a new tick-borne disease in spain-dermacentor-borne necrosis erythema lymphadenopathy (debonel). the clinical presentations include an eschar at the site of the tick bite, surrounded by an erythema and painful regional lymphadenopathy. the disease appears during the colder months and its vector is dermacentor marginatus (d. marginatus). from january 1990 to december 2004, 54 patients presented at hospital ...200617114711
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