Serologic TestsSensitivity and SpecificitySyphilis SerodiagnosisAgglutination TestsComplement Fixation TestsEnzyme-Linked Immunosorbent AssayBrucellosis, BovineAntibodies, BacterialSyphilisHemagglutination TestsBrucellosisFlocculation TestsFalse Positive ReactionsRose BengalImmunoglobulin MDelayed DiagnosisBrucellaImmunoglobulin GPrenatal DiagnosisEarly DiagnosisEvaluation Studies as TopicChagas DiseaseReagent Kits, DiagnosticAntigens, BacterialSyphilis, CongenitalAntibodies, ProtozoanTreponemal InfectionsTreponema Immobilization TestPolymerase Chain ReactionAntibodies, ViralImmunodiffusionRetrospective StudiesTrypanosoma cruziFluorescent Antibody TechniquePredictive Value of TestsDiagnosisLatex Fixation TestsImmunologic TestsBrucella abortusCross ReactionsSeroepidemiologic StudiesLyme DiseaseTreponema pallidumAntibodies, HelminthBiopsyLeukemia L5178Reproducibility of ResultsImmunoglobulin ATeprotideParasitologyCoccidioidomycosisDog DiseasesReaginsAntibodies, FungalBrucella melitensisTime FactorsPrevalenceBrazilImmunoenzyme TechniquesNeurosyphilisProspective StudiesTomography, X-Ray ComputedMustelidaeLeptospirosisFluorescent Antibody Technique, IndirectWeil DiseaseToxoplasmosisCeliac DiseaseCattle DiseasesPregnancyInfant, NewbornCat-Scratch DiseaseImmunoassayDiagnostic ErrorsEchinococcosisGranuloma InguinaleAntigens, ProtozoanHelicobacter pyloriBartonella henselaeSerologyYawsHelicobacter InfectionsAcute DiseaseAbortion, VeterinaryToxoplasmaMycoplasma pneumoniaeRisk FactorsBrucella VaccineXenodiagnosisCattleFalse Negative ReactionsSheep DiseasesEchinococcosis, PulmonaryFollow-Up StudiesHemagglutination Inhibition TestsBlood DonorsPneumonia, MycoplasmaROC CurveBorrelia burgdorferi GroupCoombs Test