hrvatski

Novi krpeljima prenosivi uzročnici u sjeverozapadnoj Hrvatskoj

Over the last few decades it has been known that Ixodes ricinus is a vector of Borrelia burgdorferi and Tick-borne encephalitis virus in north Croatia and that Rhipicephalus sanguineus is a vector of Rickettsia conori, which is cause of Mediteranean spoted fever in south part of Croatia. A number of new Rickettsia species and subspecies have been found in Europe and other parts of the world during the past 10 years. We confirmed the presence of some of them in the north of Croatia. We conducted 3 studies in order to investigate ticks (Ixodes ricinus and Dermacentor reticulatus) that were captured in north-west part of Croatia. Furthermore, we analysed them by molecullar methods to detect the presence of Rickettsia strains or Anaplasma phagocytophila. 1. Rickettsia sp. strain RpA4 was found in 6 of 100 (6%) Dermacentor reticulatus ticks from north Croatia (in collaboration with Pierre-Bernard Fournier and Didier Raoult Marseille, France) 2. Of 100 Dermacentor reticulatus ticks from north-west Croatia 17 (17%) were positive for R. helvetica (in collaboration with M.Dobec, Zurich Switzerland) 3. Of 92 Ixodes ricinus ticks R. helvetica was determined in 1(1, 08%), and of 14 Dermacentor reticulatus ticks Rickettsia sp.RpA4 (R. raoultii) was determined in 4(28, 57%)(in collaboration with K.Strasek Smrdel, Ljubljana, Slovenia) 4. Of 92 Ixodes ricinus ticks A. phagocytophilum was detected in 4 (4, 34%).(in collaboration with K.Strasek Smrdel, Ljubljana, Slovenia). In 2002. we treated one patient with TIBOLA fever (Tick-borne lymphadenopathy), but we did confirmed aetiological agent (R. slovaca) neither in patient nor in ticks in north-west Croatia. We can concluded that these findings suggest that Spoted fever group Rickettsiae exist in the north of Croatia. Close attention should be paid, after tick bite symptoms in humans and animals.

Krpeljima prenosive bolesti; rikecije; novi uzročnici nađeni u Hrvatskoj

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