Document Detail

Clinical manifestations of human brucellosis: a systematic review and meta-analysis.
MedLine Citation:
PMID:  23236528     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The objectives of this systematic review, commissioned by WHO, were to assess the frequency and severity of clinical manifestations of human brucellosis, in view of specifying a disability weight for a DALY calculation.
METHODS/PRINCIPAL FINDINGS: Thirty three databases were searched, with 2,385 articles published between January 1990-June 2010 identified as relating to human brucellosis. Fifty-seven studies were of sufficient quality for data extraction. Pooled proportions of cases with specific clinical manifestations were stratified by age category and sex and analysed using generalized linear mixed models. Data relating to duration of illness and risk factors were also extracted. Severe complications of brucellosis infection were not rare, with 1 case of endocarditis and 4 neurological cases per 100 patients. One in 10 men suffered from epididymo-orchitis. Debilitating conditions such as arthralgia, myalgia and back pain affected around half of the patients (65%, 47% and 45%, respectively). Given that 78% patients had fever, brucellosis poses a diagnostic challenge in malaria-endemic areas. Significant delays in appropriate diagnosis and treatment were the result of health service inadequacies and socioeconomic factors. Based on disability weights from the 2004 Global Burden of Disease Study, a disability weight of 0.150 is proposed as the first informed estimate for chronic, localised brucellosis and 0.190 for acute brucellosis.
CONCLUSIONS: This systematic review adds to the understanding of the global burden of brucellosis, one of the most common zoonoses worldwide. The severe, debilitating, and chronic impact of brucellosis is highlighted. Well designed epidemiological studies from regions lacking in data would allow a more complete understanding of the clinical manifestations of disease and exposure risks, and provide further evidence for policy-makers. As this is the first informed estimate of a disability weight for brucellosis, there is a need for further debate amongst brucellosis experts and a consensus to be reached.
Anna S Dean; Lisa Crump; Helena Greter; Jan Hattendorf; Esther Schelling; Jakob Zinsstag
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Publication Detail:
Type:  Journal Article; Meta-Analysis; Research Support, Non-U.S. Gov't; Review     Date:  2012-12-06
Journal Detail:
Title:  PLoS neglected tropical diseases     Volume:  6     ISSN:  1935-2735     ISO Abbreviation:  PLoS Negl Trop Dis     Publication Date:  2012  
Date Detail:
Created Date:  2012-12-13     Completed Date:  2013-05-14     Revised Date:  2013-07-11    
Medline Journal Info:
Nlm Unique ID:  101291488     Medline TA:  PLoS Negl Trop Dis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e1929     Citation Subset:  IM    
Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland.
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MeSH Terms
Brucellosis / complications,  epidemiology*,  pathology*
Endocarditis, Bacterial / epidemiology,  etiology
Epididymitis / epidemiology,  etiology
Nervous System Diseases / epidemiology,  etiology
Orchitis / epidemiology,  etiology

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