2024
Detection of Chikungunya Virus RNA in Oral Fluid and Urine: An Alternative Approach to Diagnosis?
Jacob-Nascimento L, Portilho M, Anjos R, Moreira P, Stauber C, Weaver S, Kitron U, Reis M, Ribeiro G. Detection of Chikungunya Virus RNA in Oral Fluid and Urine: An Alternative Approach to Diagnosis? Viruses 2024, 16: 235. PMID: 38400011, PMCID: PMC10891727, DOI: 10.3390/v16020235.Peer-Reviewed Original ResearchConceptsChikungunya virus infectionAcute-phase seraOral fluidChikungunya virusIgM seroconversionChikungunya virus diagnosisUrine samplesAcute febrile illnessConvalescent-phase seraAcute chikungunyaChikungunya patientsChikungunya virus RNADisease courseFebrile illnessPaired seraRT-qPCRAcute phaseIgM detectionConvalescent-phasePatientsControl group samplesSerumUrineCHIKV transmissionIgM
2022
Reliable estimation of SARS-CoV-2 anti-spike protein IgG titers from single dilution optical density values in serologic surveys
Belitardo E, Nery N, Ticona J, Portilho MM, Mello IO, Ribeiro GS, Reis MG, Costa F, Cummings DAT, Ko AI, Fofana MO. Reliable estimation of SARS-CoV-2 anti-spike protein IgG titers from single dilution optical density values in serologic surveys. Diagnostic Microbiology And Infectious Disease 2022, 104: 115807. PMID: 36162285, PMCID: PMC9428330, DOI: 10.1016/j.diagmicrobio.2022.115807.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 incidenceCommunity-based cohortPopulation-level immunitySARS-CoV-2Large-scale serosurveysELISA optical densityIgG titersIgG ELISAPandemic evolvesSerologic surveyTitersOptical density valuesPopulation-level changesSerosurveyImmunitySingle dilutionSerial dilutionsNODCohortIncidenceELISASerum
2019
Evaluation of two commercially available chikungunya virus IgM enzyme-linked immunoassays (ELISA) in a setting of concomitant transmission of chikungunya, dengue and Zika viruses
Kikuti M, Tauro L, Moreira P, Nascimento L, Portilho M, Soares G, Weaver S, Reis M, Kitron U, Ribeiro G. Evaluation of two commercially available chikungunya virus IgM enzyme-linked immunoassays (ELISA) in a setting of concomitant transmission of chikungunya, dengue and Zika viruses. International Journal Of Infectious Diseases 2019, 91: 38-43. PMID: 31704226, DOI: 10.1016/j.ijid.2019.11.001.Peer-Reviewed Original ResearchConceptsConvalescent samplesIgM enzymeRT-PCRZika virus transmissionNegative patientsCHIKV infectionAcute samplesZIKV casesConvalescent seraSurveillance studyCHIKV transmissionZika virusCHIKV casesDiagnostic performanceLow specificityVirus transmissionEquivocal resultsTest sensitivitySerumELISA specificityPatientsHigh rateDengueConcomitant transmissionMore equivocal results
2001
Leptospiral Proteins Recognized during the Humoral Immune Response to Leptospirosis in Humans
Guerreiro H, Croda J, Flannery B, Mazel M, Matsunaga J, Reis M, Levett P, Ko A, Haake D. Leptospiral Proteins Recognized during the Humoral Immune Response to Leptospirosis in Humans. Infection And Immunity 2001, 69: 4958-4968. PMID: 11447174, PMCID: PMC98588, DOI: 10.1128/iai.69.8.4958-4968.2001.Peer-Reviewed Original ResearchConceptsHumoral immune responseImmune responseNatural infectionLeptospiral proteinsInfection-associated antigenConvalescent-phase seraPositive reactionConvalescent phaseHumoral responseHealthy individualsHuman leptospirosisControl individualsVaccine designImmunodominant antigensQuantitative immunoblot analysisTwo-dimensional immunoblotsProtein antigensPathogenic leptospiral strainsGenus LeptospiraInfectionAntigenLeptospirosisSerumImmunodominant proteinsPatients
1987
Immune serum from both susceptible and resistant strains of mice increases phagocytosis of Leishmania mexicana amazonensis by macrophages.
Reis M, Roters S, Barral-Netto M. Immune serum from both susceptible and resistant strains of mice increases phagocytosis of Leishmania mexicana amazonensis by macrophages. Acta Tropica 1987, 44: 339-42. PMID: 2892370.Peer-Reviewed Original Research
1986
Stage and species specificity of antigens encoded by two geographic strains of Schistosoma mansoni mRNA.
Blanton R, Horowitz S, Reis M, Rottman F, Andrade Z, Mahmoud A. Stage and species specificity of antigens encoded by two geographic strains of Schistosoma mansoni mRNA. Journal Of Parasitology 1986, 72: 445-53. PMID: 3091803, DOI: 10.2307/3281685.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, HelminthBrazilCross ReactionsHumansMiceMice, Inbred C57BLMolecular WeightProtein BiosynthesisPuerto RicoRNA, MessengerSchistosoma haematobiumSchistosoma japonicumSchistosoma mansoniSchistosomiasis haematobiaSchistosomiasis japonicaSchistosomiasis mansoniSpecies SpecificityConceptsS. mansoniImmune human seraAntigen of MrGroup of antigensAdult worm mRNAAntigenic poolSchistosome infectionIntensity of infectionSchistosoma haematobiumIndividual seraAntigenAntigenic specificityAntigenic differencesSerumSchistosoma japonicumCross-reactive proteinEgg countsBrazilian parasitesInfectionMansoniMolecular weight proteinsHuman serumDifferent geographic strainsSpecies specificityHigh molecular weight proteins