| q fever, spotted fever group, and typhus group rickettsioses among hospitalized febrile patients in northern tanzania. | background. the importance of q fever, spotted fever group rickettsiosis (sfgr), and typhus group rickettsiosis (tgr) as causes of febrile illness in sub-saharan africa is unknown; the putative role of q fever as a human immunodeficiency virus (hiv) coinfection is unclear. methods. we identified febrile inpatients in moshi, tanzania, from september 2007 through august 2008 and collected acute- and convalescent-phase serum samples. a ≥4-fold increase in immunoglobulin (ig) g immunfluorescence ass ... | 2011 | 21810740 |