Immunofluorescent antibody (IFA) testing was performed on sera drawn from 150 pregnant women in the port city of Dar es Salaam, Tanzania. Prevalence of antibodies to Rickettsia typhi was 28%, higher than in any of the 12 other African countries in which serosurveys using IFA testing have been performed. Seroprevalence of antibodies to spotted fever group rickettsiae antigens was 25.3%, comparable with that found in other sub-Saharan countries endemic for Amblyomma ticks. Only 4.7% of women were seropositive for Coxiella burnetii.
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http://dx.doi.org/10.4269/ajtmh.1997.57.187 | DOI Listing |
Lancet Microbe
December 2024
Massachusetts General Hospital, Harvard Medical School, Harvard T.H. Chan School of Public Health, Boston, MA, USA. Electronic address:
Background: There is a shortage of rapid, accurate, and low-cost assays for diagnosing enteric fever. The dual-path platform for typhoid (DPPT) assay had high accuracy in retrospective studies with banked plasma samples. We aimed to evaluate the diagnostic accuracy of the DPPT assay in a prospective study using fingerstick capillary blood.
View Article and Find Full Text PDFInfect Med (Beijing)
December 2024
Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA 30458, USA.
Background: This scoping review provides a baseline summary of the current records of the ticks, fleas, and mites of public health importance that are present in Bangladesh. It summarizes their geographic distributions and reports the levels of their infestation of livestock, pets, wildlife, and humans, and the clinical and epidemiological studies pertinent to these vectors and their pathogens.
Methods: Sixty-one articles were identified in a literature search, including 43 published since 2011.
J Vector Ecol
December 2024
Urban and Public Health Entomology Program, Department of Agricultural Science and Plant Protection, Mississippi State University, Mississippi State, MS 39762 U.S.A.
Murine typhus, caused by , is re-emerging in many parts of the world. The disease is also called endemic typhus to differentiate from epidemic typhus (caused by ), and sometimes also named flea-borne typhus. Occasionally, literature sources will include as a causative agent of flea-borne typhus, but illnesses caused by are actually flea-borne spotted fever.
View Article and Find Full Text PDFInfect Dis (Lond)
January 2025
Department of Paediatrics, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, India.
Murine typhus, a vector-borne illness transmitted by fleas and caused by , presents significant public health challenges globally. Despite its impact, it often remains underrecognized in health systems. This disease is characterized by non-specific symptoms such as fever, rash, and severe complications in cases involving neurological or multi-organ involvement.
View Article and Find Full Text PDFJ Neurol Sci
November 2024
Department of Hospital Medicine, El Campo Memorial Hospital, El Campo, TX, USA.
Typhus group rickettsiosis (TGR), caused by Rickettsia typhi and Rickettsia prowazekii, are globally distributed vector-borne diseases with increasing cases. Diagnosis is usually clinical, confirmed by seroconversion of IgG antibodies. Human infection occurs in diverse geographic areas with some developing CNS infection characterized by fever, headache, meningismus, and/or focal signs - usually beyond the first week of initial symptomatology.
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