2022
Relative contribution of low-density and asymptomatic infections to Plasmodium vivax transmission in the Amazon: pooled analysis of individual participant data from population-based cross-sectional surveys
Ferreira MU, Corder RM, Johansen IC, Kattenberg JH, Moreno M, Rosas-Aguirre A, Ladeia-Andrade S, Conn JE, Llanos-Cuentas A, Gamboa D, Rosanas-Urgell A, Vinetz JM. Relative contribution of low-density and asymptomatic infections to Plasmodium vivax transmission in the Amazon: pooled analysis of individual participant data from population-based cross-sectional surveys. The Lancet Regional Health - Americas 2022, 9: 100169. PMID: 35663000, PMCID: PMC9161731, DOI: 10.1016/j.lana.2021.100169.Peer-Reviewed Original ResearchIndividual participant dataPolymerase chain reactionClinical manifestationsParasite densityMosquito infectionMalaria transmissionPopulation-based cross-sectional surveyParticipant dataMalaria elimination strategiesPopulation-based surveyHigh parasite densityCross-sectional surveyInfected childrenClinical symptomsAsymptomatic infectionUS National InstitutesAsymptomatic carriersParasite carriersInfectious reservoirVivax transmissionInfectionFundação de Amparo à PesquisaChain reactionNational InstituteElimination strategy
2021
Improving the leptospirosis disease burden assessment by including ambulatory patients from outpatient departments: a cross-sectional study
Warnasekara J, Aberathna P, Nanayakkara G, Vinetz J, Agampodi S. Improving the leptospirosis disease burden assessment by including ambulatory patients from outpatient departments: a cross-sectional study. F1000Research 2021, 9: 1129. PMID: 34123371, PMCID: PMC8145224, DOI: 10.12688/f1000research.26202.2.Peer-Reviewed Original ResearchConceptsOutpatient departmentOPD patientsAmbulatory patientsDisease burdenPrimary care centersProvincial General HospitalCases of leptospirosisCross-sectional studyDisease burden assessmentMicroscopic agglutination testPublic health implicationsQuantitative polymerase chain reactionOPD settingRegional Public HospitalOPD visitsLeptospirosis patientsFever patientsPatient numbersHospital inpatientsPolymerase chain reactionCare centerGeneral HospitalBurden assessmentPatientsSame periodIntegrating Parasitological and Entomological Observations to Understand Malaria Transmission in Riverine Villages in the Peruvian Amazon
Rosas-Aguirre A, Moreno M, Moreno-Gutierrez D, Llanos-Cuentas A, Saavedra M, Contreras-Mancilla J, Barboza J, Alava F, Aguirre K, Carrasco G, Prussing C, Vinetz J, Conn JE, Speybroeck N, Gamboa D. Integrating Parasitological and Entomological Observations to Understand Malaria Transmission in Riverine Villages in the Peruvian Amazon. The Journal Of Infectious Diseases 2021, 223: s99-s110. PMID: 33906225, PMCID: PMC8079135, DOI: 10.1093/infdis/jiaa496.Peer-Reviewed Original ResearchConceptsMalaria prevalenceMalaria transmissionRiverine villagesMalaria risk factorsMalaria transmission dynamicsSubmicroscopic infectionsLocal epidemiologyPolymerase chain reactionIncidence rateRisk factorsHigh prevalenceMalaria casesTreat interventionMalaria strategyPlasmodium vivaxPrevalenceChain reactionTransmission dynamicsAdult AnophelesHigh heterogeneity
2020
Improving the leptospirosis disease burden assessment by including ambulatory patients from outpatient departments: a cross-sectional study
Warnasekara J, Aberathna P, Nanayakkara G, Vinetz J, Agampodi S. Improving the leptospirosis disease burden assessment by including ambulatory patients from outpatient departments: a cross-sectional study. F1000Research 2020, 9: 1129. DOI: 10.12688/f1000research.26202.1.Peer-Reviewed Original ResearchOutpatient departmentDisease burden assessmentOPD patientsAmbulatory patientsBurden assessmentPrimary care centersProvincial General HospitalCases of leptospirosisCross-sectional studyPrevalence of leptospirosisMicroscopic agglutination testPublic health implicationsDisease burden estimationQuantitative polymerase chain reactionOPD settingRegional Public HospitalOPD visitsTreatable diagnosisLeptospirosis patientsFever patientsPatient numbersHospital inpatientsDisease burdenPolymerase chain reactionCare center
2018
Experimental Infection of Rattus norvegicus by the Group II Intermediate Pathogen, Leptospira licerasiae.
Fernandez C, Lubar AA, Vinetz JM, Matthias MA. Experimental Infection of Rattus norvegicus by the Group II Intermediate Pathogen, Leptospira licerasiae. American Journal Of Tropical Medicine And Hygiene 2018, 99: 275-280. PMID: 29943708, PMCID: PMC6090328, DOI: 10.4269/ajtmh.17-0844.Peer-Reviewed Original ResearchConceptsOral routeHuman seroreactivitySprague-Dawley ratsRoute of infectionExperimental infection modelQuantitative polymerase chain reactionTranscutaneous routeGastric gavageParenteral inoculationClinical historyPolymerase chain reactionRenal colonizationGroup IIKidney tissuePeruvian Amazon cityExperimental infectionInfectionInfection modelChain reactionSeroreactivityHigh rateRatsReservoir hostsAmazon cityGavage
2016
Reactive Case Detection for Plasmodium vivax Malaria Elimination in Rural Amazonia
Fontoura PS, Finco BF, Lima NF, de Carvalho JF, Vinetz JM, Castro MC, Ferreira MU. Reactive Case Detection for Plasmodium vivax Malaria Elimination in Rural Amazonia. PLOS Neglected Tropical Diseases 2016, 10: e0005221. PMID: 27941968, PMCID: PMC5179126, DOI: 10.1371/journal.pntd.0005221.Peer-Reviewed Original ResearchConceptsMalaria eliminationIndex caseElimination effortsControl householdsCorrelates of infectionReactive case detectionMixed-effects logistic regression modelResidual malaria transmissionCase detection strategiesMolecular genotypingMalaria elimination effortsP. vivax transmissionTotal parasite biomassReal-time polymerase chain reactionQuantitative real-time polymerase chain reactionLogistic regression modelsP. vivax diversityPotential confoundersAsymptomatic carriersPolymerase chain reactionCase detectionIndex householdsQPCR-positive samplesMalaria burdenPlasmodium vivax
2012
Utility of Quantitative Polymerase Chain Reaction in Leptospirosis Diagnosis: Association of Level of Leptospiremia and Clinical Manifestations in Sri Lanka
Agampodi SB, Matthias MA, Moreno AC, Vinetz JM. Utility of Quantitative Polymerase Chain Reaction in Leptospirosis Diagnosis: Association of Level of Leptospiremia and Clinical Manifestations in Sri Lanka. Clinical Infectious Diseases 2012, 54: 1249-1255. PMID: 22354922, PMCID: PMC3404689, DOI: 10.1093/cid/cis035.Peer-Reviewed Original ResearchConceptsQuantitative polymerase chain reactionClinical manifestationsPolymerase chain reactionBlood samplesChain reactionWhole bloodOnset of symptomsSensitivity of qPCRAssociation of levelsSerum/bloodMicroscopic agglutination test panelValid diagnostic testPatient blood samplesOptimal sample typeFailure patientsRenal failureWhole blood samplesPatient populationTimely diagnosisLeptospiral loadEndemic areasDay 2Day 15LeptospiremiaDiagnostic tests
2000
Detection of pathogenic Leptospira spp. infections among mammals captured in the Peruvian Amazon basin region.
Bunnell J, Hice C, Watts D, Montrueil V, Tesh R, Vinetz J. Detection of pathogenic Leptospira spp. infections among mammals captured in the Peruvian Amazon basin region. American Journal Of Tropical Medicine And Hygiene 2000, 63: 255-8. PMID: 11421373, DOI: 10.4269/ajtmh.2000.63.255.Peer-Reviewed Original Research