Detection of European Strain of Echinococcus multilocularis in North America
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چکیده
of the Rickettsia spp. we identifi ed. As shown (2), multilocus analysis with ompA–ompB sequences was highly informative about the phylogenetic relationship between Rickettsia spp. and R. conorii strains (Figure, panel B). In Sicily, R. conorii Malish strain has been characterized in MSF patients (4), and R. slovaca DNA was identifi ed in ixodid ticks (5). However, to our knowledge, R. slovaca in humans in Sicily and R. conorii Indian tick typhus strain infection in Sicily and Europe have not been reported. The only previous report outside India and Pakistan was documented in a traveler with severe clinical manifestations in France (10). Differences were not observed between R. conorii Indian tick typhus strain and R. slovaca– infected patients. Both patients had similar clinical symptoms compatible with MSF; in both, only IgM for rickettsiae was detected at hospital admission, but IgM and IgG were detected during convalescence. Tache noire were detected in the neck and right arm of patients with R. conorii Indian tick typhus strain and R. slovaca, respectively. These results demonstrated that new rickettsiae, such as R. conorii Indian tick typhus strain, of public health relevance are emerging in Europe. The widespread distribution of tick vectors in Europe and the transtadial and transovarial transmission of the pathogen in ticks might favor transmission to humans.
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Echinococcus multilocularis in North America: the great unknown
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