title: Q-fever, OX19, OX2 and leptospirosis antibodies in patients with onyalai and in negroid, bushman and white inhabitants of Kavango, Namibia.
mesh_terms: D001741:Black or African American; D000907:Antibodies, Bacterial / Q000032:analysis*; D044383:Black People; D006801:Humans; D008297:Male; D009276:Namibia; D011696:Purpura, Thrombocytopenic / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial