| serological evidence of infection with rickettsia typhi and rickettsia felis among the human population of catalonia, in the northeast of spain. | murine typhus (mt) is a cause of fever of intermediate duration in the south of spain. rickettsia typhi has been described as the mt etiological agent. rickettsia felis produces an infection similar to mt. the aim of the study is to determine their seroprevalence in humans in catalonia. antibodies to rickettsia typhi and rickettsia felis from 217 serum samples were examined by indirect immunofluorescence assay (ifa). age, gender, residence area, contact with animals, and occupation were surveyed ... | 2006 | 16407356 |