ParasitesHost-Parasite InteractionsParasite LoadPlasmodium falciparumProtozoan ProteinsOdds RatioCohort StudiesMalariaParasitic Diseases, AnimalCase-Control StudiesMalaria, FalciparumParasite Egg CountProspective StudiesToxoplasmaApicomplexaDNA, ProtozoanPrevalenceAntimalarialsLogistic ModelsLife Cycle StagesIncidenceIntestinal Diseases, ParasiticTreatment OutcomeAntigens, ProtozoanTrypanosoma cruziRisk FactorsConfidence IntervalsParasitic DiseasesFollow-Up StudiesParasitemiaPlasmodium bergheiTime FactorsRetrospective StudiesCross-Sectional StudiesErythrocytesTrematodaGenes, ProtozoanLeishmaniaMultivariate AnalysisCestodaProtozoan InfectionsRisk AssessmentProportional Hazards ModelsProtozoan Infections, AnimalAntiprotozoal AgentsGenotypeRiskAntibodies, ProtozoanHelminthsHaemosporidaAge FactorsGenome, ProtozoanParasitologyLeishmania majorQuestionnairesHelminthiasis, AnimalUnited StatesLeishmania donovaniDrug ResistanceParasitic Sensitivity TestsPregnancySchistosoma mansoniGenetic Predisposition to DiseaseSporozoitesLeishmaniasis, CutaneousNematode InfectionsMolecular Sequence DataInfant, NewbornPrognosisPlasmodium vivaxPolymorphism, GeneticPredictive Value of TestsChloroquineSmokingPlasmodium yoeliiSensitivity and SpecificitySex FactorsLeishmaniasis, VisceralTrematode InfectionsLeishmaniasisSurvival AnalysisPolymerase Chain ReactionChagas DiseaseArtemisininsAnophelesTrophozoitesRandomized Controlled Trials as TopicTrypanosoma brucei bruceiAcanthocephalaRegistriesCysticercusSchizontsAge DistributionOocystsPolymorphism, Single NucleotideBrazilRegression AnalysisTrypanosomaKaplan-Meier EstimateGiardia lamblia