2022
Demographic, exposure, clinical, biochemical and diagnostic data of febrile patients recruited for the largest field study on leptospirosis in Sri Lanka
Agampodi S, Warnasekara J, Siribaddana S, Kularatna S, Gamage C, Jayasundara D, Senevirathna I, Srimantha S, Kappagoda C, Weerawansa P, Pilapitiya S, Lokunarangoda N, Sarathchandra C, Senanayake H, Matthias M, Vinetz J. Demographic, exposure, clinical, biochemical and diagnostic data of febrile patients recruited for the largest field study on leptospirosis in Sri Lanka. Data In Brief 2022, 43: 108378. PMID: 35770027, PMCID: PMC9234077, DOI: 10.1016/j.dib.2022.108378.Peer-Reviewed Original ResearchBiannual and Quarterly Comparison Analysis of Agglutinating Antibody Kinetics on a Subcohort of Individuals Exposed to Leptospira interrogans in Salvador, Brazil
Cruz J, Nery N, Sacramento G, Victoriano R, Montenegro A, Santana J, Costa F, Ko A, Reis M, Wunder E. Biannual and Quarterly Comparison Analysis of Agglutinating Antibody Kinetics on a Subcohort of Individuals Exposed to Leptospira interrogans in Salvador, Brazil. Frontiers In Medicine 2022, 9: 862378. PMID: 35492362, PMCID: PMC9048256, DOI: 10.3389/fmed.2022.862378.Peer-Reviewed Original ResearchMicroscopic agglutination testAntibody kineticsEndemic areasReinfection eventsSubcohort of individualsBurden of leptospirosisLife-threatening diseaseProspective cohortClinical manifestationsAsymptomatic infectionHumoral responseRisk factorsImmune responseLeptospirosis infectionAgglutination testPaucity of informationSerological surveyLeptospirosisSample collection timeInfectionLeptospira interrogansSubcohortFurther studiesHigh rateDiseaseDiagnostic 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
2020
Seroepidemiology of Leptospira infection in slaughtered cattle in Gauteng province, South Africa
Dogonyaro BB, van Heerden H, Potts AD, Kolo BF, Lotter C, Katsande C, Fasina FO, Ko AI, Wunder EA, Adesiyun AA. Seroepidemiology of Leptospira infection in slaughtered cattle in Gauteng province, South Africa. Tropical Animal Health And Production 2020, 52: 3789-3798. PMID: 33009586, PMCID: PMC10407966, DOI: 10.1007/s11250-020-02417-0.Peer-Reviewed Original ResearchConceptsSeroprevalence of leptospirosisMicroscopic agglutination testRisk factorsCattle populationSeropositive cattleSerogroup SejroeSouth AfricaCattleCross-sectional studyLeptospira sppPublic health importancePredominant serogroupVaccine serogroupsAbattoirLivestockLeptospira infectionGauteng ProvinceCutoff titerBlood samplesLeptospirosisSejroeDemographic dataHealth importanceAgglutination testSeroprevalence
2019
Study protocol: characterising the clinical, epidemiological and aetiological aspects of leptospirosis in Sri Lanka: a hospital based clinico-epidemiological study
Agampodi S, Warnasekara J, Jayasundara D, Senawirathna I, Gamage C, Kularatne S, Siribaddana S, Maththias M, Vinetz J. Study protocol: characterising the clinical, epidemiological and aetiological aspects of leptospirosis in Sri Lanka: a hospital based clinico-epidemiological study. BMJ Open 2019, 9: e027850. PMID: 31511281, PMCID: PMC6738675, DOI: 10.1136/bmjopen-2018-027850.Peer-Reviewed Original ResearchConceptsEthics Review CommitteeMultilocus sequence typingOutpatient departmentClinico-epidemiological studyMulticentre prospective studyDay of admissionMicroscopic agglutination testPresence of diseaseHospital stayFebrile patientsMedical wardsProspective studySri Lankan isolatesRisk factorsVenous bloodDisease progressionEthical clearanceHigh incidenceAetiological aspectsPatientsAgglutination testMolecular epidemiologyPatient contextBedside inoculationLeptospirosisSeroprevalence, Risk Factors, and Rodent Reservoirs of Leptospirosis in an Urban Community of Puerto Rico, 2015
Briskin EA, Casanovas-Massana A, Ryff KR, Morales-Estrada S, Hamond C, Perez-Rodriguez NM, Benavidez KM, Weinberger DM, Castro-Arellano I, Wunder EA, Sharp TM, Rivera-Garcia B, Ko AI. Seroprevalence, Risk Factors, and Rodent Reservoirs of Leptospirosis in an Urban Community of Puerto Rico, 2015. The Journal Of Infectious Diseases 2019, 220: 1489-1497. PMID: 31342075, PMCID: PMC6761939, DOI: 10.1093/infdis/jiz339.Peer-Reviewed Original ResearchConceptsRisk factorsAnti-Leptospira antibodiesBurden of leptospirosisRisk of infectionMicroscopic agglutination testCross-sectional surveyQuantitative polymerase chain reactionSeropositive individualsPrevious infectionPolymerase chain reactionLeptospira infectionLeptospira carriageSerogroup IcterohaemorrhagiaeHigh titersStudy participantsAgglutination testLeptospira exposurePathogenic LeptospiraInfectionRodent reservoirsChain reactionAntibodiesRodent trappingSeroprevalenceCommunity sites
2016
Redefining Gold Standard Testing for Diagnosing Leptospirosis: Further Evidence from a Well-Characterized, Flood-Related Outbreak in Sri Lanka.
Agampodi SB, Dahanayaka NJ, Nöckler K, Mayer-Scholl A, Vinetz JM. Redefining Gold Standard Testing for Diagnosing Leptospirosis: Further Evidence from a Well-Characterized, Flood-Related Outbreak in Sri Lanka. American Journal Of Tropical Medicine And Hygiene 2016, 95: 531-536. PMID: 27402521, PMCID: PMC5014254, DOI: 10.4269/ajtmh.16-0033.Peer-Reviewed Original ResearchConceptsEnzyme-linked immunosorbent assayMicroscopic agglutination testIgG enzyme-linked immunosorbent assayQuantitative polymerase chain reactionImmunoglobulin G (IgG) ELISAHouse enzyme-linked immunosorbent assayDays of illnessAcute-phase seraCases of leptospirosisAvailable enzyme-linked immunosorbent assayGold standard testingMAT positive samplesDiagnostic test resultsAcute specimensAcute phasePatient populationPhase seraPolymerase chain reactionBlood samplesSerological sensitivityAgglutination testImmunosorbent assayLeptospirosisLeptospira kirschneriDominant serovars
2010
Prevalence and Correlates of HIV and Syphilis Infections Among Men Who Have Sex With Men in Seven Provinces in China With Historically Low HIV Prevalence
Xiao Y, Sun J, Li C, Lu F, Allen KL, Vermund SH, Jia Y. Prevalence and Correlates of HIV and Syphilis Infections Among Men Who Have Sex With Men in Seven Provinces in China With Historically Low HIV Prevalence. JAIDS Journal Of Acquired Immune Deficiency Syndromes 2010, 53: s66-s73. PMID: 20104113, DOI: 10.1097/qai.0b013e3181c7db43.Peer-Reviewed Original ResearchConceptsLow HIV prevalenceSyphilis infectionInconsistent condom useHIV prevalenceMSM populationAnal sexCondom usePassive particle agglutination testOlder ageCorrelates of HIVLess educationBehavioral risk factorsRapid plasma reaginParticle agglutination testWestern blot confirmationDetection of TreponemaEnzyme-linked immunosorbentCross-sectional surveyHIV infectionRisk factorsBlood samplesMSM participantsHIVAgglutination testInfection
2009
Evaluation of surveillance case definition in the diagnosis of leptospirosis, using the Microscopic Agglutination Test: a validation study
Dassanayake D, Wimalaratna H, Agampodi SB, Liyanapathirana VC, Piyarathna T, Goonapienuwala BL. Evaluation of surveillance case definition in the diagnosis of leptospirosis, using the Microscopic Agglutination Test: a validation study. BMC Infectious Diseases 2009, 9: 48. PMID: 19386085, PMCID: PMC2679753, DOI: 10.1186/1471-2334-9-48.Peer-Reviewed Original ResearchConceptsSurveillance case definitionMicroscopic agglutination testCase definitionNegative predictive valuePredictive valueClinical featuresMAT titresAgglutination testDays of feverAcute febrile illnessMethodsThe study populationTeaching Hospital KandyPositive predictive valueDiagnosis of leptospirosisPositive MAT resultsFebrile illnessMedical wardsResultsA totalHospital KandyStudy populationBlood samplesConclusionThis studyPatientsDiagnostic accuracyLeptospirosis
2006
Seroprevalence of Toxoplasma gondii antibodies in captive elephants (Elephaus maximus maximus) in Sri Lanka
Dangolla A, Ekanayake D, Rajapakse R, Dubey J, Silva I. Seroprevalence of Toxoplasma gondii antibodies in captive elephants (Elephaus maximus maximus) in Sri Lanka. Veterinary Parasitology 2006, 137: 172-174. PMID: 16414192, DOI: 10.1016/j.vetpar.2005.11.028.Peer-Reviewed Original Research
2005
Isolation and Molecular Characterization of Toxoplasma gondii From Chickens From Sri Lanka
Dubey J, Rajapakse R, Ekanayake D, Sreekumar C, Lehmann T. Isolation and Molecular Characterization of Toxoplasma gondii From Chickens From Sri Lanka. Journal Of Parasitology 2005, 91: 1480-1482. PMID: 16539035, DOI: 10.1645/ge-479r.1.Peer-Reviewed Original ResearchConceptsModified agglutination testFree-range chickensPrevalence of T. gondii oocystsGenetic characterization of T. gondiiModified agglutination test titersAntibodies to T. gondiiPrevalence of Toxoplasma gondiiPrevalence of T. gondiiT. gondii oocystsT. gondii isolatesSeropositive chickensSAG2 locusGallus domesticusToxoplasma gondiiAgglutination testChickenOocystsGenetic characterizationCatsMolecular characterizationSri LankaTitersIsolatesSAG2Gallus
2004
Seroprevalence of Toxoplasma gondii in Wild Toque Macaques (Macaca sinica) at Polonnaruwa, Sri Lanka
Ekanayake D, Rajapakse R, Dubey J, Dittus W. Seroprevalence of Toxoplasma gondii in Wild Toque Macaques (Macaca sinica) at Polonnaruwa, Sri Lanka. Journal Of Parasitology 2004, 90: 870-871. PMID: 15357087, DOI: 10.1645/ge-291r.Peer-Reviewed Original ResearchConceptsAntibodies to Toxoplasma gondiiSeroprevalence of Toxoplasma gondiiModified agglutination testT. gondii antibodiesToxoplasma gondii infectionDry evergreen forestT. gondiiDomestic catsAgglutination testEvergreen forestCongenital toxoplasmosisForest habitatsNatural populationsSerum samplesToque macaquesMacaca sinicaSri LankaToxoplasmosisAsian primatesForestCatsSeroprevalencePolonnaruwaWildMaternal transmission
2001
Evaluation of Recombinant Leptospira Antigen-Based Enzyme-Linked Immunosorbent Assays for the Serodiagnosis of Leptospirosis
Flannery B, Costa D, Carvalho F, Guerreiro H, Matsunaga J, Da Silva E, Ferreira A, Riley L, Reis M, Haake D, Ko A. Evaluation of Recombinant Leptospira Antigen-Based Enzyme-Linked Immunosorbent Assays for the Serodiagnosis of Leptospirosis. Journal Of Clinical Microbiology 2001, 39: 3303-3310. PMID: 11526167, PMCID: PMC88335, DOI: 10.1128/jcm.39.9.3303-3310.2001.Peer-Reviewed Original ResearchConceptsEnzyme-linked immunosorbent assayIgG enzyme-linked immunosorbent assaySerodiagnosis of leptospirosisHealthy individualsImmunosorbent assayTest-positive individualsCases of leptospirosisHigh-incidence regionsLyme disease patientsMicroscopic agglutination testConvalescent phaseHepatitis patientsAcute phaseDengue patientsDisease patientsPatient seraHealthy residentsLeptospira antigensCutoff valueDiagnostic utilityPatientsAgglutination testUseful antigenLeptospirosisAntigen
1993
Comparison of latex agglutination test with enzyme-linked immunosorbent assay for detection of antibody to varicella-zoster virus
Landry ML, Ferguson D. Comparison of latex agglutination test with enzyme-linked immunosorbent assay for detection of antibody to varicella-zoster virus. Journal Of Clinical Microbiology 1993, 31: 3031-3033. PMID: 8263191, PMCID: PMC266199, DOI: 10.1128/jcm.31.11.3031-3033.1993.Peer-Reviewed Original Research
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