title: Why does immunity to parasites take  so long to develop?
authors.forename: Maria
authors.initials: M
authors.lastname: Yazdanbakhsh
authors.forename: David L
authors.initials: DL
authors.lastname: Sacks
mesh_terms: D000367:Age Factors; D000818:Animals; D005075:Biological Evolution; D002648:Child; D006790:Host-Parasite Interactions / Q000276:immunology*; D006801:Humans; D057131:Immune Evasion / Q000502:physiology*; D007113:Immunity, Innate / Q000502:physiology; D007891:Leishmania / Q000472:pathogenicity; D016778:Malaria, Falciparum / Q000276:immunology; D010271:Parasites / Q000276:immunology* / Q000472:pathogenicity; D010963:Plasmodium falciparum / Q000276:immunology / Q000472:pathogenicity; D012552:Schistosomiasis / Q000276:immunology; D013997:Time Factors