ToxocariasisToxocaraEye Infections, ParasiticToxocara canisLarva Migrans, VisceralLarva MigransAntibodies, HelminthChoroid HemorrhageCentral Nervous System HelminthiasisAscariasisAntigens, HelminthSeroepidemiologic StudiesThiabendazoleEosinophiliaPicaChild, AbandonedEnzyme-Linked Immunosorbent AssayAnthelminticsAlbendazoleAscaris lumbricoidesFood Parasitology