No abstract available
MeSH terms
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Antibodies, Bacterial / blood*
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Blood Donors / statistics & numerical data
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Boutonneuse Fever / epidemiology
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Coxiella burnetii / immunology*
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Fluorescent Antibody Technique, Indirect
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Humans
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Mauritania / epidemiology
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Q Fever / epidemiology
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Rickettsia / classification
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Rickettsia / immunology*
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Rickettsia Infections / epidemiology
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Rickettsia conorii / immunology*
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Rickettsia typhi / immunology*
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Seroepidemiologic Studies
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Typhus, Endemic Flea-Borne / epidemiology