ToxocariasisToxocara canisToxocaraLarva Migrans, VisceralAntibodies, HelminthEye Infections, ParasiticCentral Nervous System HelminthiasisEhrlichia canisLarva MigransAscariasisAntigens, HelminthSeroepidemiologic StudiesEosinophiliaThiabendazoleDog DiseasesPicaDogsChild, AbandonedEnzyme-Linked Immunosorbent AssayAnthelminticsAlbendazoleAscaris lumbricoidesMicrosporumChoroid HemorrhageFood ParasitologyEhrlichiosisEhrlichiaArgentinaImmunoglobulin GWolvesZoonoses