2024
Recurrence patterns and evolution of submicroscopic and asymptomatic Plasmodium vivax infections in malaria-endemic areas of the Peruvian Amazon
Castillo S, Alvarez C, Rosas-Aguirre Á, Acosta C, Corder R, Gómez J, Guzmán M, Speybroeck N, Llanos-Cuentas A, Castro M, Rosanas-Urgell A, Ferreira M, Vinetz J, Gamboa D, Torres K. Recurrence patterns and evolution of submicroscopic and asymptomatic Plasmodium vivax infections in malaria-endemic areas of the Peruvian Amazon. PLOS Neglected Tropical Diseases 2024, 18: e0012566. PMID: 39480785, PMCID: PMC11527163, DOI: 10.1371/journal.pntd.0012566.Peer-Reviewed Original ResearchConceptsRisk of P. vivax infectionPlasmodium vivax malaria transmissionFactors associated with recurrenceVivax malaria transmissionPlasmodium vivax infectionMalaria-endemic areasPopulation-based cohort studyFrequency of recurrenceApplication of molecular diagnostic methodsMalaria recurrenceMalaria infectionMalaria transmissionVivax infectionRecurrence rateMolecular diagnostic methodsRecurrence riskConsequences of prolonged exposureFollow-upCohort studyEndemic settingsRecurrenceAsymptomatic infectionAsymptomatic casesInfectionInitial infection
2022
Diagnostic method-based underestimation of leptospirosis in clinical and research settings; an experience from a large prospective study in a high endemic setting
Warnasekara J, Srimantha S, Kappagoda C, Jayasundara D, Senevirathna I, Matthias M, Agampodi S, Vinetz J. Diagnostic method-based underestimation of leptospirosis in clinical and research settings; an experience from a large prospective study in a high endemic setting. PLOS Neglected Tropical Diseases 2022, 16: e0010331. PMID: 35377883, PMCID: PMC9009773, DOI: 10.1371/journal.pntd.0010331.Peer-Reviewed Original ResearchConceptsMicroscopic agglutination testProspective hospital-based studyLeptospirosis casesQuantitative PCRHigh endemic settingHospital-based studyClinical case definitionLarge prospective studiesDisease burden estimatesPublic health burdenStandard diagnostic testMonths of observationUndifferentiated feverAcute leptospirosisProspective studyCase definitionEndemic settingsHealth burdenTimely diagnosisBurden estimatesDiagnostic valueSignificant human mortalityAgglutination testStudy settingDiagnostic tests
2021
Clinical spectrum of endemic leptospirosis in relation to cytokine response
Dahanayaka NJ, Agampodi SB, Seneviratna I, Warnasekara J, Rajapakse R, Ranathunga K, Matthias M, Vinetz JM. Clinical spectrum of endemic leptospirosis in relation to cytokine response. PLOS ONE 2021, 16: e0261025. PMID: 34879100, PMCID: PMC8654203, DOI: 10.1371/journal.pone.0261025.Peer-Reviewed Original ResearchConceptsCytokine responsesLeptospirosis patientsClinical spectrumHigher IL-13 levelsHigher IL-5Acute kidney injuryHigher serum creatinineIL-13 levelsSerum cytokine levelsIL-6 levelsUniversity Teaching HospitalMultiplex cytokine kitKidney injuryLung involvementCytokine levelsSerum creatinineAcute phaseCytokine kitIL-1βAcute samplesConvalescence periodIL-8IL-5Prognostic informationEndemic settingsNext-Generation Sequencing Analysis of Pathogenic Leptospira: A Way Forward for Understanding Infectious Disease Dynamics in Low/Middle-Income, Disease-Endemic Settings.
Agampodi SB, Vinetz JM. Next-Generation Sequencing Analysis of Pathogenic Leptospira: A Way Forward for Understanding Infectious Disease Dynamics in Low/Middle-Income, Disease-Endemic Settings. American Journal Of Tropical Medicine And Hygiene 2021, 104: 1625-1627. PMID: 33755589, PMCID: PMC8103479, DOI: 10.4269/ajtmh.20-1518.Peer-Reviewed Original ResearchHeterogeneity in response to serological exposure markers of recent Plasmodium vivax infections in contrasting epidemiological contexts
Rosado J, White MT, Longley RJ, Lacerda M, Monteiro W, Brewster J, Sattabongkot J, Guzman-Guzman M, Llanos-Cuentas A, Vinetz JM, Gamboa D, Mueller I. Heterogeneity in response to serological exposure markers of recent Plasmodium vivax infections in contrasting epidemiological contexts. PLOS Neglected Tropical Diseases 2021, 15: e0009165. PMID: 33591976, PMCID: PMC7909627, DOI: 10.1371/journal.pntd.0009165.Peer-Reviewed Original ResearchConceptsSerological exposure markersBlood-stage infectionLow transmission settingsP. vivax infectionPlasmodium vivax infectionHigh transmission settingsVivax infectionTransmission settingsAntibody titersAntibody responseExposure markersDifferent transmission intensitiesIgG responsesSerological markersPrevious infectionReceiver Operating Characteristic (ROC) analysisEndemic settingsMalaria eliminationPeruvian cohortOperating characteristics analysisP. vivaxMalaria controlRecent exposureInfectionEpidemiological context