title: Significance of Widal test in the diagnosis of typhoid and paratyphoid fever.
mesh_terms: D000293:Adolescent; D000328:Adult; D000372:Agglutination Tests; D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D010284:Paratyphoid Fever / Q000175:diagnosis*; D014435:Typhoid Fever / Q000175:diagnosis*