title: [Pertussis in Chiba Prefecture: with special reference to serological observation].
mesh_terms: D000373:Agglutinins / Q000032:analysis; D001886:Bordetella pertussis / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007564:Japan; D008297:Male; D014917:Whooping Cough / Q000453:epidemiology / Q000276:immunology*
chemical_list: D000373:Agglutinins