2024
Noninvasive in vivo photoacoustic detection of malaria with Cytophone in Cameroon
Yadem A, Armstrong J, Sarimollaoglu M, Kiki Massa C, Ndifo J, Menyaev Y, Mbe A, Richards K, Wade M, Zeng Y, Chen R, Zhou Q, Meten E, Ntone R, Tchuedji Y, Ullah S, Galanzha E, Eteki L, Gonsu H, Biris A, Suen J, Boum Y, Zharov V, Parikh S. Noninvasive in vivo photoacoustic detection of malaria with Cytophone in Cameroon. Nature Communications 2024, 15: 9228. PMID: 39455558, PMCID: PMC11511992, DOI: 10.1038/s41467-024-53243-z.Peer-Reviewed Original ResearchConceptsClearance of parasitemiaDetection of malariaMalaria-infected red blood cellsDiagnosed symptomatic casesCross-sectional cohortUncomplicated malariaMalaria diagnosticsMalaria infectionRed blood cellsSymptomatic casesTarget antigenAsymptomatic reservoirCameroonian adultsFlow cytometer platformBlood samplesReservoir of infectionBlood cellsLack sensitivityLongitudinal cohortMolecular assaysMalariaIRBCPoint-of-careCohortQuantitative PCRPersistent and multiclonal malaria parasite dynamics despite extended artemether-lumefantrine treatment in children
Goodwin J, Kajubi R, Wang K, Li F, Wade M, Orukan F, Huang L, Whalen M, Aweeka F, Mwebaza N, Parikh S. Persistent and multiclonal malaria parasite dynamics despite extended artemether-lumefantrine treatment in children. Nature Communications 2024, 15: 3817. PMID: 38714692, PMCID: PMC11076639, DOI: 10.1038/s41467-024-48210-7.Peer-Reviewed Original ResearchConceptsDay 7 lumefantrine concentrationsArtemether-lumefantrine treatmentRing-stage parasitesEarly post-treatmentEarly post-treatment periodArtemether-lumefantrineArtemisinin resistanceDay regimenMulticlonal infectionsEfficacious therapyFollow-upRandomized trialsPersistent clonesTransmission settingsEffective treatmentPost-treatment periodRegimensAntimalarial studiesStandard diagnosticsStandard 3DaysPost-treatmentChildrenTreatmentTherapy
2022
Clinical characteristics of Plasmodium falciparum infection among symptomatic patients presenting to a major urban military hospital in Cameroon
Hodson DZ, Mbarga Etoundi Y, Mbatou Nghokeng N, Mohamadou Poulibe R, Magne Djoko S, Goodwin J, Cheteug Nguesta G, Nganso T, Armstrong JN, Andrews JJ, Zhang E, Wade M, Eboumbou Moukoko CE, Boum Y, Parikh S. Clinical characteristics of Plasmodium falciparum infection among symptomatic patients presenting to a major urban military hospital in Cameroon. Malaria Journal 2022, 21: 298. PMID: 36273147, PMCID: PMC9588226, DOI: 10.1186/s12936-022-04315-2.Peer-Reviewed Original ResearchConceptsP. falciparum infectionPopulation attributable risk percentFalciparum infectionPlasmodium falciparum infectionYears of ageClinical characteristicsUrban hospitalMilitary HospitalAttributable risk percentHigher positivity rateLikelihood ratioRapid diagnostic testsMajor urban hospitalRural African settingConclusionsThe prevalenceHigh feverSymptomatic patientsHemoglobin levelsAnemia prevalenceSevere anemiaEmergency departmentVenous samplesClinical surveyPositivity rateWHO definition
2020
Investigating selected host and parasite factors potentially impacting upon seasonal malaria chemoprevention in Bama, Burkina Faso
Somé FA, Bazié T, Ehrlich HY, Goodwin J, Lehane A, Neya C, Zachari K, Wade M, Ouattara JM, Foy BD, Dabiré RK, Parikh S, Ouédraogo JB. Investigating selected host and parasite factors potentially impacting upon seasonal malaria chemoprevention in Bama, Burkina Faso. Malaria Journal 2020, 19: 238. PMID: 32631416, PMCID: PMC7339464, DOI: 10.1186/s12936-020-03311-8.Peer-Reviewed Original ResearchConceptsSeasonal malaria chemopreventionDay 7 concentrationsSMC administrationMalaria chemopreventionMalaria infectionDay 7 plasma concentrationsHigh malaria transmission seasonBlood spotsFirst monthPfcrt 76TPrevalence of microscopicSubmicroscopic malaria infectionMalaria transmission seasonPlasmodium falciparum infectionPfcrt K76THigh transmission settingsSequential cross-sectional surveysCross-sectional surveyNon-significant trendAmodiaquine metabolismPfmdr1 N86Malaria parasitaemiaFalciparum infectionK76TPlasma concentrations
2019
Comparison on simultaneous capillary and venous parasite density and genotyping results from children and adults with uncomplicated malaria: a prospective observational study in Uganda
Lehane A, Were M, Wade M, Hamadu M, Cahill M, Kiconco S, Kajubi R, Aweeka F, Mwebaza N, Li F, Parikh S. Comparison on simultaneous capillary and venous parasite density and genotyping results from children and adults with uncomplicated malaria: a prospective observational study in Uganda. BMC Infectious Diseases 2019, 19: 559. PMID: 31242863, PMCID: PMC6595677, DOI: 10.1186/s12879-019-4174-1.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAIDS-Related Opportunistic InfectionsAnimalsAntimalarialsArtemether, Lumefantrine Drug CombinationCapillariesChildChild, PreschoolDrug MonitoringFemaleGenotypeGenotyping TechniquesHIVHIV InfectionsHumansInfantMalaria, FalciparumMaleMiddle AgedParasite LoadParasitemiaPlasmodium falciparumUgandaVeinsYoung AdultConceptsTime of presentationVenous blood smearsProspective observational studyParasite densityVenous compartmentBlood smearsVenous samplesObservational studyMSP-2Uncomplicated Plasmodium falciparum malariaTrial registrationThe trialPlasmodium falciparum malariaResultsTwo hundred twentyMalaria parasite densityClinical research settingResearch settingsUncomplicated malariaArtemether-lumefantrineFalciparum malariaParasite genotypingBland-Altman analysisHundred twentyMalaria diagnosisNew infectionsGold standard methodEfficacy and risk of harms of repeat ivermectin mass drug administrations for control of malaria (RIMDAMAL): a cluster-randomised trial
Foy BD, Alout H, Seaman JA, Rao S, Magalhaes T, Wade M, Parikh S, Soma DD, Sagna AB, Fournet F, Slater HC, Bougma R, Drabo F, Diabaté A, Coulidiaty AGV, Rouamba N, Dabiré RK. Efficacy and risk of harms of repeat ivermectin mass drug administrations for control of malaria (RIMDAMAL): a cluster-randomised trial. The Lancet 2019, 393: 1517-1526. PMID: 30878222, PMCID: PMC6459982, DOI: 10.1016/s0140-6736(18)32321-3.Peer-Reviewed Original ResearchConceptsMass drug administrationCluster-randomised trialIntervention groupMalaria episodesControl groupDrug AdministrationDetection cohortMass administrationIvermectin mass drug administrationUncomplicated malaria episodesClinical malaria episodesMalaria transmission seasonSingle oral dosesControl of malariaAdverse eventsCumulative incidencePrimary outcomeOral dosesEligible participantsAdverse reactionsFurther dosesTwo-armExclusion criteriaTransmission seasonTreatment phase
2017
Evaluation of the Deki Reader™, an automated RDT reader and data management device, in a household survey setting in low malaria endemic southwestern Uganda
Oyet C, Roh ME, Kiwanuka GN, Orikiriza P, Wade M, Parikh S, Mwanga-Amumpaire J, Boum Y. Evaluation of the Deki Reader™, an automated RDT reader and data management device, in a household survey setting in low malaria endemic southwestern Uganda. Malaria Journal 2017, 16: 449. PMID: 29115991, PMCID: PMC5678817, DOI: 10.1186/s12936-017-2094-3.Peer-Reviewed Original ResearchConceptsRapid diagnostic testsDeki ReaderCross-sectional surveySouthwestern UgandaPlasmodium falciparum casesEffective malaria control toolsHealth center settingMalaria transmission intensityOverall percent agreementMalaria control toolsGold standard microscopyResource-constrained settingsFalciparum casesBackgroundEarly diagnosisAdequate battery lifeMalaria casesBlood samplesMalaria diagnosisSectional surveyResultsThe sensitivityPercent agreementDiagnostic testsCenter settingDiagnostic performanceConclusionsThe findings
2016
Screening for Glucose-6-Phosphate Dehydrogenase Deficiency Using Three Detection Methods: A Cross-Sectional Survey in Southwestern Uganda.
Roh ME, Oyet C, Orikiriza P, Wade M, Mwanga-Amumpaire J, Boum Y, Kiwanuka GN, Parikh S. Screening for Glucose-6-Phosphate Dehydrogenase Deficiency Using Three Detection Methods: A Cross-Sectional Survey in Southwestern Uganda. American Journal Of Tropical Medicine And Hygiene 2016, 95: 1094-1099. PMID: 27672207, PMCID: PMC5094223, DOI: 10.4269/ajtmh.16-0552.Peer-Reviewed Original ResearchMeSH KeywordsChild, PreschoolCross-Sectional StudiesDiagnostic Tests, RoutineFemaleGene FrequencyGlucosephosphate DehydrogenaseGlucosephosphate Dehydrogenase DeficiencyHumansInfantMalariaMalaria, FalciparumMalaria, VivaxMalePoint-of-Care SystemsPrevalencePrimaquineRural PopulationSensitivity and SpecificityUgandaUrban PopulationConceptsG6PDd prevalenceGlucose-6-phosphate dehydrogenase deficiencyDehydrogenase deficiencySingle-dose primaquinePlasmodium falciparum transmissionSouthwestern UgandaPlasmodium ovale infectionNegative predictive valueMonths of ageCross-sectional surveyViable screening testOvale infectionsDiagnostic modalitiesStandard quantitative assayLow prevalenceRadical curePlasmodium vivaxPredictive valueSectional surveyCare testScreening testPrevalenceSevere deficiencyPrimaquineEnzyme activityAsymptomatic Plasmodium Infections in Children in Low Malaria Transmission Setting, Southwestern Uganda - Volume 22, Number 8—August 2016 - Emerging Infectious Diseases journal - CDC
Roh ME, Oyet C, Orikiriza P, Wade M, Kiwanuka GN, Mwanga-Amumpaire J, Parikh S, Boum Y. Asymptomatic Plasmodium Infections in Children in Low Malaria Transmission Setting, Southwestern Uganda - Volume 22, Number 8—August 2016 - Emerging Infectious Diseases journal - CDC. Emerging Infectious Diseases 2016, 22: 1494-1498. PMID: 27434741, PMCID: PMC4982177, DOI: 10.3201/eid2208.160619.Peer-Reviewed Original ResearchConceptsMicroscopy-positive samplesLow malaria transmission settingsInfectious Diseases journal - CDCAsymptomatic Plasmodium infectionsMalaria transmission settingsRapid diagnostic testsP. falciparum parasitesRoutine diagnostic testingP. ovale parasitesAsymptomatic childrenPlasmodium infectionPlasmodium malariaeP. malariaeTransmission settingsFalciparum parasitesDiagnostic testingDiagnostic testsMalariaeChildrenParasitesInfectionAssociation of sputum microbiota profiles with severity of community-acquired pneumonia in children
Pettigrew MM, Gent JF, Kong Y, Wade M, Gansebom S, Bramley AM, Jain S, Arnold SL, McCullers JA. Association of sputum microbiota profiles with severity of community-acquired pneumonia in children. BMC Infectious Diseases 2016, 16: 317. PMID: 27391033, PMCID: PMC4939047, DOI: 10.1186/s12879-016-1670-4.Peer-Reviewed Original ResearchConceptsCommunity-acquired pneumoniaCAP severityMicrobiota profilesClinical courseRespiratory microbiotaPediatric community-acquired pneumoniaIntensive care unit admissionNasopharyngeal/oropharyngeal samplesCare unit admissionOdds of lengthInduced sputum samplesRespiratory tract microbiotaOP samplesRibosomal RNA sequencingUnit admissionDecreased oddsSputum samplesChildren 6Oropharyngeal samplesMicrobiota influenceChildren 5Logistic regressionSputumSeverityPneumonia