2023
Dynamics of chikungunya virus transmission in the first year after its introduction in Brazil: A cohort study in an urban community
Anjos R, Portilho M, Jacob-Nascimento L, Carvalho C, Moreira P, Sacramento G, Nery N, de Oliveira D, Cruz J, Cardoso C, Argibay H, Plante K, Plante J, Weaver S, Kitron U, Reis M, Ko A, Costa F, Ribeiro G. Dynamics of chikungunya virus transmission in the first year after its introduction in Brazil: A cohort study in an urban community. PLOS Neglected Tropical Diseases 2023, 17: e0011863. PMID: 38150470, PMCID: PMC10775974, DOI: 10.1371/journal.pntd.0011863.Peer-Reviewed Original ResearchEpidemiological indicators of Chagas disease in the metropolitan region of Salvador, Bahia, Brazil
Lanza F, Ribeiro-Jr G, Miranda D, Santos F, Carvalho C, Cunha G, Carneiro I, Reis R, Cunha J, Cardoso C, Soares J, Araújo F, Reis M. Epidemiological indicators of Chagas disease in the metropolitan region of Salvador, Bahia, Brazil. Revista Da Sociedade Brasileira De Medicina Tropical 2023, 56: e0185-2022. PMID: 36820652, PMCID: PMC9957123, DOI: 10.1590/0037-8682-0185-2022.Peer-Reviewed Original Research
2022
Structural factors associated with SARS-CoV-2 infection risk in an urban slum setting in Salvador, Brazil: A cross-sectional survey
Fofana MO, Nery N, Ticona J, de Andrade Belitardo EMM, Victoriano R, Anjos RO, Portilho MM, de Santana MC, dos Santos LL, de Oliveira D, Cruz JS, Muenker MC, Khouri R, Wunder EA, Hitchings MDT, Johnson O, Reis MG, Ribeiro GS, Cummings DAT, Costa F, Ko AI. Structural factors associated with SARS-CoV-2 infection risk in an urban slum setting in Salvador, Brazil: A cross-sectional survey. PLOS Medicine 2022, 19: e1004093. PMID: 36074784, PMCID: PMC9499230, DOI: 10.1371/journal.pmed.1004093.Peer-Reviewed Original ResearchMeSH KeywordsAdultBrazilChildCOVID-19Cross-Sectional StudiesFemaleHumansImmunoglobulin GMalePandemicsPoverty AreasSARS-CoV-2Seroepidemiologic StudiesSpike Glycoprotein, CoronavirusConceptsSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infectionAcute respiratory syndrome coronavirus 2 infectionSARS-CoV-2 infection riskUrban slumsSyndrome coronavirus 2 infectionSARS-CoV-2 seroprevalenceSARS-CoV-2 incidenceCoronavirus 2 infectionCross-sectional serosurveyMain outcome measuresUrban slum populationPresence of IgGSARS-CoV-2 spike proteinUrban slum communityCross-sectional surveyUrban slum residentsCumulative incidenceMedian ageRisk factorsOutcome measuresStudy populationHigh seroprevalenceMedian dailyPandemic waveGender distributionReliable 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 ResearchMeSH KeywordsAntibodies, ViralCOVID-19HumansImmunoglobulin GReproducibility of ResultsSARS-CoV-2Seroepidemiologic StudiesConceptsSARS-CoV-2 incidenceCommunity-based cohortPopulation-level immunitySARS-CoV-2Large-scale serosurveysELISA optical densityIgG titersIgG ELISAPandemic evolvesSerologic surveyTitersOptical density valuesPopulation-level changesSerosurveyImmunitySingle dilutionSerial dilutionsNODCohortIncidenceELISASerum
2020
Transmission of Chikungunya Virus in a Brazilian Urban Slum - Volume 26, Number 7—July 2020 - Emerging Infectious Diseases journal - CDC
Anjos RO, Mugabe VA, Moreira PSS, Carvalho CX, Portilho MM, Khouri R, Sacramento GA, Nery NRR, Reis MG, Kitron UD, Ko AI, Costa F, Ribeiro GS. Transmission of Chikungunya Virus in a Brazilian Urban Slum - Volume 26, Number 7—July 2020 - Emerging Infectious Diseases journal - CDC. Emerging Infectious Diseases 2020, 26: 1364-1373. PMID: 32568045, PMCID: PMC7323528, DOI: 10.3201/eid2607.190846.Peer-Reviewed Original ResearchMeSH KeywordsAntibodies, ViralBrazilChikungunya FeverChikungunya virusCross-Sectional StudiesDisease OutbreaksHumansPoverty AreasSeroepidemiologic StudiesConceptsEpisodes of feverChikungunya outbreakInfectious Diseases journal - CDCSymptomatic infection ratePresumptive clinical diagnosisSufficient herd immunityCommunity-based studyFurther longitudinal studiesCHIKV seroprevalenceSeropositive personsVirus seroprevalenceClinical dataHerd immunityChikungunya virusInfection rateClinical diagnosisSerum samplesDisease pointUnpaved streetsArthralgiaLongitudinal studyFeverSeroprevalenceEpisodesOutbreak
2006
Prevalence of hepatitis C virus (HCV) infection and HCV genotypes of hemodialysis patients in Salvador, Northeastern Brazil
Silva L, Silva M, Rodart I, Lopes G, Costa F, Melo M, Gusmão E, Reis M. Prevalence of hepatitis C virus (HCV) infection and HCV genotypes of hemodialysis patients in Salvador, Northeastern Brazil. Brazilian Journal Of Medical And Biological Research 2006, 39: 595-602. PMID: 16648896, DOI: 10.1590/s0100-879x2006000500005.Peer-Reviewed Original ResearchConceptsHepatitis C virus infectionCandidate blood donorsC virus infectionHD patientsHCV infectionBlood donorsGenotype 1Virus infectionAnti-HCV seroprevalenceAnti-HCV prevalenceHCV genotype distributionAnti-HCV antibodiesHCV genotype 1Chronic liver diseaseTransfusion-transmitted infectionsCross-sectional studyDifferent dialysis centresHCV seroprevalenceChronic hemodialysisHemodialysis populationHCV RNAPositive patientsHemodialysis patientsHCV genotypesLiver disease
2000
Hepatitis C virus genotypes in a northeastern area of Brazil.
Silva L, Paraná R, Souza S, Berby F, Kay A, Trepó C, Santana N, Cotrim H, Lyra L, Reis M. Hepatitis C virus genotypes in a northeastern area of Brazil. American Journal Of Tropical Medicine And Hygiene 2000, 62: 257-60. PMID: 10813481, DOI: 10.4269/ajtmh.2000.62.257.Peer-Reviewed Original ResearchConceptsHepatitis C virusReverse transcription-polymerase chain reactionC virusGenotyping of HCVTranscription-polymerase chain reactionSeropositive serum samplesGenotype-specific primersWarrants further investigationGenotype 3Subtype 1aAlanine aminotransferaseGenotype distributionAspartate aminotransferaseSerum samplesMixed genotypesChain reactionViral RNACity of SalvadorFurther investigationAminotransferaseVirusBrazilian samplePatientsHigh frequencyGenotypes