2024
Pathogen diversity and antimicrobial resistance transmission of Salmonella enterica serovars Typhi and Paratyphi A in Bangladesh, Nepal, and Malawi: a genomic epidemiological study
Dyson Z, Ashton P, Khanam F, Chirambo A, Shakya M, Meiring J, Tonks S, Karkey A, Msefula C, Clemens J, Dunstan S, Baker S, Dougan G, Pitzer V, Basnyat, Qadri F, Heyderman R, Gordon M, Pollard A, Holt K, Group S, Banda H, Biswas P, Bhuiyan A, Blohmke C, Darton T, Dolecek C, Dongol S, Mujadidi Y, Hill J, Hoang N, Jere T, Mbewe M, Msuku H, Nga T, Nkhata R, Rahman S, Rahman N, Saad N, Tan T, Thindwa D, Voysey M, Wachepa R. Pathogen diversity and antimicrobial resistance transmission of Salmonella enterica serovars Typhi and Paratyphi A in Bangladesh, Nepal, and Malawi: a genomic epidemiological study. The Lancet Microbe 2024, 5: 100841. PMID: 38996496, PMCID: PMC11300424, DOI: 10.1016/s2666-5247(24)00047-8.Peer-Reviewed Original ResearchParatyphi ASerovars TyphiPathogenic variantsAntimicrobial resistanceSalmonella enterica serovar TyphiEnteric feverAncestral state reconstructionS paratyphi ADeterminants of antimicrobial resistanceSingle-nucleotide variantsAntimicrobial resistance determinantsQuinolone-resistance mutationsAntimicrobial resistance transmissionCore genomePhylogenomic analysisAzithromycin resistance mutationsPhylogenetic analysisGenomic dataPopulation structurePathogen diversityS typhiTransmission of resistant strainsGenomic epidemiologyAntimicrobial resistant infectionsAge groupsLoss of function of metabolic traits in typhoidal Salmonella without apparent genome degradation
Machado L, Galán J. Loss of function of metabolic traits in typhoidal Salmonella without apparent genome degradation. MBio 2024, 15: e00607-24. PMID: 38572992, PMCID: PMC11077982, DOI: 10.1128/mbio.00607-24.Peer-Reviewed Original ResearchConceptsSalmonella enterica</i> serovar TyphiAdaptive convergent evolutionFunction of metabolic pathwaysAmino acid substitutionsConvergent evolutionMetabolic pathwaysParatyphi A.Paratyphi AHuman hostTranscriptional regulationAcid substitutionsMetabolic capabilitiesPoint mutationsParatyphoid feverTranscriptional regulatory proteinsMetabolic enzymesAffecting different genesPresence of point mutationsGenome degradationTyphoidal SalmonellaGlucose-6-phosphateCoding sequenceBioinformatics approachTyphiBacterial pathogens
2019
Baseline titres of O, H and AH agglutinins to Salmonella Typhi and Paratyphi A in blood donors in Sri Lanka.
Illapperuma S, Corea E, Agampodi S. Baseline titres of O, H and AH agglutinins to Salmonella Typhi and Paratyphi A in blood donors in Sri Lanka. Sri Lankan Journal Of Infectious Diseases 2019, 9: 32-41. DOI: 10.4038/sljid.v9i1.8230.Peer-Reviewed Original ResearchBaseline titreEnteric feverBlood donorsStudy populationBaseline Widal titresWidal test resultsYears age groupHigher test positivitySri Lankan settingWidal titresTest positivitySri Lankan populationWidal testBlood culturesEndemic countriesO agglutininsParatyphi AAge groupsStudy participantsBlood bankTitresSerum samplesSalmonella OSalmonella typhiFever
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