title: Eosinophilia in travelers.
abstract: Eosinophilia in travelers may be caused by infections acquired during travels. Infections with helminthic, but not protozoan, parasites are the most likely causes of eosinophilia, although other etiologies may warrant consideration. This article reviews the parasitic and other causes of eosinophilia. Helminthic infections early in their development may elicit the most pronounced eosinophilia yet be difficult to diagnose. Chronic helminthic infections may yield eosinophilia that persists for prolonged periods of time after initial infection.
authors.affiliation: Department of Medicine, Harvard Medical School, Boston, Massachusetts.
authors.forename: P F
authors.initials: PF
authors.lastname: Weller
mesh_terms: D004802:Eosinophilia / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D014195:Travel