Featured Publications
Insights into Plasmodium vivax Asymptomatic Malaria Infections and Direct Skin-Feeding Assays to Assess Onward Malaria Transmission in the Amazon.
Moreno M, Torres K, Tong C, García Castillo SS, Carrasco-Escobar G, Guedez G, Torres L, Herrera-Varela M, Guerra L, Guzman-Guzman M, Wong D, Ramirez R, Llanos-Cuentas A, Conn JE, Gamboa D, Vinetz JM. Insights into Plasmodium vivax Asymptomatic Malaria Infections and Direct Skin-Feeding Assays to Assess Onward Malaria Transmission in the Amazon. American Journal Of Tropical Medicine And Hygiene 2022, 107: 154-161. PMID: 35895359, PMCID: PMC9294676, DOI: 10.4269/ajtmh.21-1217.Peer-Reviewed Original ResearchConceptsDirect skin feeding assaysMalaria infectionP. vivax malaria infectionsAsymptomatic malaria infectionsVivax malaria infectionMosquito feeding assaysDiverse epidemiological settingsCohort studySymptomatic infectionAsymptomatic individualsAsymptomatic infectionSymptomatic participantsParasite carriersPlasmodium vivaxEpidemiological settingsMalaria transmissionPlasmodium gametocytesInfectionMajor mosquito vectorsDisease transmissibilityParasite infectionLongitudinal studyMosquito vectorsInfection intensityInfectivity
2024
Lower Microscopy Sensitivity with Decreasing Malaria Prevalence in the Urban Amazon Region, Brazil, 2018–2021 - Volume 30, Number 9—September 2024 - Emerging Infectious Diseases journal - CDC
Rodrigues P, Johansen I, Ladeia W, Esquivel F, Corder R, Tonini J, Calil P, Fernandes A, Fontoura P, Cavasini C, Vinetz J, Castro M, Ferreira M, . Lower Microscopy Sensitivity with Decreasing Malaria Prevalence in the Urban Amazon Region, Brazil, 2018–2021 - Volume 30, Number 9—September 2024 - Emerging Infectious Diseases journal - CDC. Emerging Infectious Diseases 2024, 30: 1884-1894. PMID: 39174028, PMCID: PMC11346994, DOI: 10.3201/eid3009.240378.Peer-Reviewed Original ResearchConceptsEffectiveness of malaria controlDecreasing malaria prevalenceEpidemiology of malariaPoint-of-care microscopyThreshold of microscopyPlasmodium vivaxMalaria prevalenceMalarial infectionMalaria controlMalaria transmissionP. falciparumMicroscopy sensitivityParasite densityAsymptomatic infectionRoutine surveillanceMalariaPrevalence surveyInfectionPrevalenceParasite genotypesTransmission hotspotsElimination strategiesRural residentsMolecular methodsCDCGenomic surveillance of malaria parasites in an indigenous community in the Peruvian Amazon
Cabrera-Sosa L, Nolasco O, Kattenberg J, Fernandez-Miñope C, Valdivia H, Barazorda K, Arévalo de los Rios S, Rodriguez-Ferrucci H, Vinetz J, Rosanas-Urgell A, Van geertruyden J, Gamboa D, Delgado-Ratto C. Genomic surveillance of malaria parasites in an indigenous community in the Peruvian Amazon. Scientific Reports 2024, 14: 16291. PMID: 39009685, PMCID: PMC11250820, DOI: 10.1038/s41598-024-66925-x.Peer-Reviewed Original ResearchConceptsPassive case detectionPf parasitesPersistent malaria transmissionPfhrp2/3 gene deletionsDeep sequencing assaySulfadoxine-pyrimethamineMalaria casesMalaria eliminationPlasmodium vivaxMalaria parasitesMalaria transmissionP. falciparumResistance mutationsImported infectionsMalariaPopulation genetic indicesSequencing assayCase detectionGene deletionPV populationResistance markersGenetic diversityPeruvian AmazonGenomic surveillanceGenetic indicesEffect of spatiotemporal variables on abundance, biting activity and parity of Nyssorhynchus darlingi (Diptera: Culicidae) in peri-Iquitos, Peru
Bickersmith S, Saavedra M, Prussing C, Lange R, Morales J, Alava F, Vinetz J, Gamboa D, Moreno M, Conn J. Effect of spatiotemporal variables on abundance, biting activity and parity of Nyssorhynchus darlingi (Diptera: Culicidae) in peri-Iquitos, Peru. Malaria Journal 2024, 23: 112. PMID: 38641572, PMCID: PMC11031940, DOI: 10.1186/s12936-024-04940-z.Peer-Reviewed Original ResearchConceptsMalaria transmissionBreeding site availabilityPresence of Plasmodium vivaxDry seasonBiting behaviorRisk of malaria transmissionMalaria-endemic regionsHuman malaria casesPlasmodium falciparum sporozoitesRainy seasonCommunity typesNyssorhynchus darlingiRates of parityReal-time PCRAmazonian PeruP. vivaxMalaria casesPlasmodium vivaxHuman landing catchesP. falciparumEffect of seasonMosquito behaviorConclusionsThese dataDaily survivalDarlingiCase Report: Plasmodium vivax Sporozoite Melanization in the Midgut and Salivary Gland of the Malaria Vector Anopheles darlingi
Dos Santos N, da Silva Bastos A, Araújo J, Pontual J, Medeiros J, Vinetz J, da Silva Araujo M. Case Report: Plasmodium vivax Sporozoite Melanization in the Midgut and Salivary Gland of the Malaria Vector Anopheles darlingi. American Journal Of Tropical Medicine And Hygiene 2024, 110: 444-447. PMID: 38350139, PMCID: PMC10919193, DOI: 10.4269/ajtmh.23-0349.Peer-Reviewed Original ResearchResponses to P. vivaxPlasmodium falciparum parasitesPrimary malaria vectorPlasmodium vivaxVector Anopheles darlingiFalciparum parasitesMalaria parasitesMalaria vector Anopheles darlingiPlasmodium parasitesSalivary glandsMalaria vectorsPlasmodiumAnopheline mosquitoesAnopheles darlingiMalariaDarlingiVivaxSalivaryGland
2023
Natural Infection of Nyssorhynchus darlingi and Nyssorhynchus benarrochi B with Plasmodium during the Dry Season in the Understudied Low-Transmission Setting of Datem del Marañon Province, Amazonian Peru
Conn J, Bickersmith S, Saavedra M, Morales J, Alava F, Rodriguez G, del Aguila Morante C, Tong C, Alvarez-Antonio C, Huanahui J, Vinetz J, Gamboa D. Natural Infection of Nyssorhynchus darlingi and Nyssorhynchus benarrochi B with Plasmodium during the Dry Season in the Understudied Low-Transmission Setting of Datem del Marañon Province, Amazonian Peru. American Journal Of Tropical Medicine And Hygiene 2023, 109: 288-295. PMID: 37364858, PMCID: PMC10397451, DOI: 10.4269/ajtmh.23-0058.Peer-Reviewed Original ResearchConceptsLow transmission settingsAnnual parasite indexEntomological inoculation rateHuman biting rateHuman landing catchesMinistry of HealthMalaria hotspotsInfective bitesPlasmodium vivaxMalaria transmissionLanding catchesPlasmodium falciparumMalaria researchNatural infectionInoculation rateNyssorhynchus darlingiBiting rateRiverine villagesParasite indexBiteVector control unitsDarlingiLoreto DepartmentInfectionVivaxTransmission-blocking activity of antimalarials for Plasmodium vivax malaria in Anopheles darlingi
Andrade A, Santos N, Bastos A, Pontual J, Araújo J, Silva A, Martinez L, Lima A, Aguiar A, Teles C, Medeiros J, Pereira D, Vinetz J, Gazzinelli R, Araújo M. Transmission-blocking activity of antimalarials for Plasmodium vivax malaria in Anopheles darlingi. PLOS Neglected Tropical Diseases 2023, 17: e0011425. PMID: 37327209, PMCID: PMC10310017, DOI: 10.1371/journal.pntd.0011425.Peer-Reviewed Original ResearchConceptsDensity of gametocytesTransmission-blocking efficacyPlasmodium vivax malariaTransmission-blocking activityImportant infectious diseasesOne-doseVivax malariaP. vivaxMosquito infectionPlasmodium vivaxTreatment groupsPatient's bloodGametocyte productionMalaria transmissionInfectious diseasesGenus PlasmodiumMalariaTreatmentChloroquinePrimaquineVivaxBloodDirect membraneBiological characteristicsMosquitoes
2022
Evidence-Based Malaria Control and Elimination in the Amazon: Input from the International Center of Excellence in Malaria Research Network in Peru and Brazil
Ferreira MU, Gamboa D, Torres K, Rodriguez-Ferrucci H, Soto-Calle VE, Pardo K, Fontoura PS, Tomko SS, Gazzinelli RT, Conn JE, Castro MC, Llanos-Cuentas A, Vinetz JM. Evidence-Based Malaria Control and Elimination in the Amazon: Input from the International Center of Excellence in Malaria Research Network in Peru and Brazil. American Journal Of Tropical Medicine And Hygiene 2022, 107: 160-167. PMID: 36228907, PMCID: PMC9662230, DOI: 10.4269/ajtmh.21-1272.Peer-Reviewed Original ResearchConceptsMalaria controlAsymptomatic Plasmodium infectionsPredominant malaria parasitePublic health decision makersMalaria control strategiesPublic health implicationsIndoor residual sprayingBetter malaria controlHealth decision makersVector control measuresPlasmodium infectionInfectious reservoirMalaria burdenPlasmodium vivaxBed netsPublic health policymakingElimination programMalaria parasitesResidual sprayingMalaria researchHealth implicationsNyssorhynchus darlingiDiagnostic methodsHealth policymakingResearch Network
2021
Integrating 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
2018
Asymptomatic Plasmodium vivax parasitaemia in the low-transmission setting: the role for a population-based transmission-blocking vaccine for malaria elimination
Martin TCS, Vinetz JM. Asymptomatic Plasmodium vivax parasitaemia in the low-transmission setting: the role for a population-based transmission-blocking vaccine for malaria elimination. Malaria Journal 2018, 17: 89. PMID: 29466991, PMCID: PMC5822557, DOI: 10.1186/s12936-018-2243-3.Peer-Reviewed Original ResearchConceptsTransmission-blocking vaccinesPlasmodium vivax parasitaemiaLow transmission settingsControl of transmissionVivax parasitaemiaChloroquine resistanceAsymptomatic carriageMalaria eliminationNew therapiesPlasmodium vivaxImportant causeCarrier stateImmunological interactionsVaccineOnward infectionInfectionParasite transmissionEradication effortsMosquitoesMorbidityParasitaemiaTherapyMortalityDiagnosisVivax
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 vivaxEpidemiology of Plasmodium vivax Malaria in Peru
Rosas-Aguirre A, Gamboa D, Manrique P, Conn JE, Moreno M, Lescano AG, Sanchez JF, Rodriguez H, Silva H, Llanos-Cuentas A, Vinetz JM. Epidemiology of Plasmodium vivax Malaria in Peru. American Journal Of Tropical Medicine And Hygiene 2016, 95: 133-144. PMID: 27799639, PMCID: PMC5201219, DOI: 10.4269/ajtmh.16-0268.Peer-Reviewed Original ResearchConceptsMalaria transmissionP. vivaxMalaria controlPlasmodium falciparum malaria casesMicroscopy-confirmed casesP. vivax malaria transmissionFalciparum malaria casesPlasmodium vivax malariaVivax malaria transmissionPublic health problemGlucose-6-phosphate dehydrogenase deficiencyFuture malaria controlImplementation of surveillanceCombination therapyVivax malariaClinical trialsMalaria casesPlasmodium vivaxElimination effortsHealth problemsP. falciparumMosquito transmissionDehydrogenase deficiencyVivaxOngoing surveillance activitiesPopulation genomics studies identify signatures of global dispersal and drug resistance in Plasmodium vivax
Hupalo DN, Luo Z, Melnikov A, Sutton PL, Rogov P, Escalante A, Vallejo AF, Herrera S, Arévalo-Herrera M, Fan Q, Wang Y, Cui L, Lucas CM, Durand S, Sanchez JF, Baldeviano GC, Lescano AG, Laman M, Barnadas C, Barry A, Mueller I, Kazura JW, Eapen A, Kanagaraj D, Valecha N, Ferreira MU, Roobsoong W, Nguitragool W, Sattabonkot J, Gamboa D, Kosek M, Vinetz JM, González-Cerón L, Birren BW, Neafsey DE, Carlton JM. Population genomics studies identify signatures of global dispersal and drug resistance in Plasmodium vivax. Nature Genetics 2016, 48: 953-958. PMID: 27348298, PMCID: PMC5347536, DOI: 10.1038/ng.3588.Peer-Reviewed Original Research
2006
314 EXPERIMENTAL INFECTION OF ANOPHELES DARLINGI MOSQUITOES BY PLASMODIUM VIVAX FROM NATURALLY INFECTED PATIENTS IN THE PERUVIAN AMAZON.
Bharti A, Chuquiyauri R, Segura E, Lopez V, Stancil J, Llanos A, Vinetz J. 314 EXPERIMENTAL INFECTION OF ANOPHELES DARLINGI MOSQUITOES BY PLASMODIUM VIVAX FROM NATURALLY INFECTED PATIENTS IN THE PERUVIAN AMAZON. Journal Of Investigative Medicine 2006, 54: s134. DOI: 10.2310/6650.2005.x0004.313.Peer-Reviewed Original ResearchP. vivaxPlasmodium vivaxP. vivax infectionIncidence of malariaLife-threatening diseaseTransmission of infectionOocyst loadMembrane feeding techniqueSymptomatic patientsArtificial membrane feeding techniqueVivax malariaVivax infectionInterventional methodsPatientsInfected mosquitoesExperimental infectionDarlingi mosquitoesMosquito midgutVivaxAlternative interventionsInfectionMicroscopic examinationCurrent control measuresInfected midgutsMalariaExperimental Infection of Anopheles Darlingi Mosquitoes by Plasmodium Vivax From Naturally Infected Patients in the Peruvian Amazon
Bharti A, Chuquiyauri R, Segura E, Lopez V, Stancil J, Llanos A, Vinetz J. Experimental Infection of Anopheles Darlingi Mosquitoes by Plasmodium Vivax From Naturally Infected Patients in the Peruvian Amazon. Journal Of Investigative Medicine 2006, 54: 134-134. DOI: 10.1177/108155890605401s197.Peer-Reviewed Original Research