title: Fluctuations in antibody levels in infection with Treponema pertenue. A four-year follow-up of Karkar islanders with early yaws.
mesh_terms: D000293:Adolescent; D000907:Antibodies, Bacterial / Q000032:analysis*; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D015001:Yaws / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial