NAVAL MEDICAL RESEARCH INST BETHESDA MD
Pagination or Media Count:
Among the changes that have occurred during the past decade, human infection in Europe with the spotted fever group rickettsia Rickettsia conorii was found to occur more frequently and to produce a more severe disease than in the past. To the large number of rickettsial species in the spotted fever group, some established pathogens and others most likely commensals in the invertebrate host, two have been added, the pathogen R. japonica and the commensal R helvetica. The commensal R. bellii was isolated and described as a rickettsia that is possibly not a member of the spotted fever group. The most extensive additions to our information are possibly those that involve the genus Ehrlichia. Ristic et al. demonstrated that there is a small but highly significant degree of serologic relationship between the dog pathogen Ehrlichia canis and the human pathogen Rickettsia sennetsu.
- Medicine and Medical Research