Hookworm InfectionsNecator americanusAncylostomatoideaAncylostomiasisAncylostomaNecatoriasisAscariasisParasite Egg CountAscaris lumbricoidesAnthelminticsMebendazoleHelminthiasisNecatorAlbendazoleTrichuriasisIntestinal Diseases, ParasiticHelminthsOesophagostomiasisTrichurisAntibodies, HelminthAntigens, HelminthAntinematodal AgentsAspartic Acid ProteasesFecesParaguayOesophagostomumAnemiaPraziquantelNematode InfectionsSoilVaccinesHelminth ProteinsPregnancy Complications, HematologicMalaysiaHemoglobinsMesocricetusPrevalenceLarvaAgricultural Workers' Diseases