2024
Overestimation of Severe Acute Respiratory Syndrome Coronavirus 2 Household Transmission in Settings of High Community Transmission: Insights From an Informal Settlement Community in Salvador, Brazil
Ticona J, Nery N, Hitchings M, Belitardo E, Fofana M, Dorión M, Victoriano R, Cruz J, Santana J, de Moraes L, Cardoso C, Ribeiro G, Reis M, Khouri R, Costa F, Ko A, Cummings D. Overestimation of Severe Acute Respiratory Syndrome Coronavirus 2 Household Transmission in Settings of High Community Transmission: Insights From an Informal Settlement Community in Salvador, Brazil. Open Forum Infectious Diseases 2024, 11: ofae065. PMID: 38516384, PMCID: PMC10957159, DOI: 10.1093/ofid/ofae065.Peer-Reviewed Original ResearchSARS-CoV-2Household transmissionRT-PCR positive casesSecondary attack rateAttack rateSARS-CoV-2 infectionSARS-CoV-2 Omicron variantRisk of infectionCommunity acquisitionTherapeutic optionsCOVID-19-related symptomsCase-finding studyHousehold contactsAcquisition of SARS-CoV-2Increased riskSymptom onsetSecondary infectionBooster vaccinationSevere outcomesBiweekly visitsHighest attack rateRT-PCRInfectionCOVID-19 severe outcomesOmicron BA
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