Life Cycle StagesSchistosomatidaeTrypanosoma brucei bruceiSexualitySexual Dysfunctions, PsychologicalProtozoan ProteinsDNA, HelminthOrgasmSporozoitesRNA, ProtozoanSexual Dysfunction, PhysiologicalSexual BehaviorLibidoCell CycleTsetse FliesQuality of LifeHost-Parasite InteractionsRNA, Ribosomal, 28SErectile DysfunctionCoitusMolecular Sequence DataPersonal SatisfactionTrypanosoma cruziAmino Acid SequencePatientsPlasmodium falciparumQuestionnairesEstrous CycleSequence Homology, Amino AcidBase SequenceSelf ConceptMenstrual CycleCross-Sectional StudiesCell Cycle ProteinsMitosisDNA, KinetoplastEstrusNuclear Transfer TechniquesG1 PhaseGenes, ProtozoanCytokinesisCell NucleusS PhaseLifeCell DivisionTime FactorsCell LineRNA, MessengerRNA InterferenceTranscription, GeneticMutationG2 PhaseDNA, ProtozoanModels, BiologicalDNA ReplicationProgesteroneMicroscopy, FluorescenceVirus ReplicationFlow Cytometry