Population genetic structure, antibiotic resistance, capsule switching and evolution of invasive pneumococci before conjugate vaccination in Malawi
Chaguza C, Cornick JE, Andam CP, Gladstone RA, Alaerts M, Musicha P, Peno C, Bar-Zeev N, Kamng'ona AW, Kiran AM, Msefula CL, McGee L, Breiman RF, Kadioglu A, French N, Heyderman RS, Hanage WP, Bentley SD, Everett DB. Population genetic structure, antibiotic resistance, capsule switching and evolution of invasive pneumococci before conjugate vaccination in Malawi. Vaccine 2017, 35: 4594-4602. PMID: 28711389, PMCID: PMC5571440, DOI: 10.1016/j.vaccine.2017.07.009.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultBacterial CapsulesChildChild, PreschoolDrug Resistance, Multiple, BacterialEvolution, MolecularFemaleGenome, BacterialHigh-Throughput Nucleotide SequencingHumansInfantInfant, NewbornMalawiMalePneumococcal InfectionsPneumococcal VaccinesPrevalenceRetrospective StudiesSerogroupSerotypingStreptococcus pneumoniaeVaccinationVaccines, ConjugateYoung AdultConceptsPneumococcal conjugate vaccineMDR ratePneumococcal isolatesHigher MDR rateImplementation of PCV13Prevalence of serotypesNon-vaccine serotypesInvasive pneumococcal isolatesGood infection preventionAntibiotic resistance ratesAntibiotic resistanceAbsence of vaccinesReplacement serotypesSerotype replacementInvasive pneumococciPneumococcal infectionConjugate vaccineSerotype 12FDisease burdenInfection preventionSerotype prevalenceHigh prevalenceInvasive isolatesContinued surveillanceResistance ratesGenomic landscape of extended-spectrum β-lactamase resistance in Escherichia coli from an urban African setting
Musicha P, Feasey NA, Cain AK, Kallonen T, Chaguza C, Peno C, Khonga M, Thompson S, Gray KJ, Mather AE, Heyderman RS, Everett DB, Thomson NR, Msefula CL. Genomic landscape of extended-spectrum β-lactamase resistance in Escherichia coli from an urban African setting. Journal Of Antimicrobial Chemotherapy 2017, 72: 1602-1609. PMID: 28333330, PMCID: PMC5437524, DOI: 10.1093/jac/dkx058.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultBeta-Lactam ResistanceBeta-LactamasesChildChild, PreschoolChloramphenicolDrug Resistance, Multiple, BacterialEscherichia coliEscherichia coli InfectionsFemaleGenes, BacterialGenetic VariationGenomicsHumansMalawiMaleMicrobial Sensitivity TestsMultilocus Sequence TypingPhylogenyUrban PopulationYoung AdultConceptsAntimicrobial resistanceExtended spectrum β-lactamase resistanceEscherichia coli infectionResource-rich settingsUrban African settingCommon ESBL geneLow-income settingsPhenotypic resistance profilesΒ-lactamase resistanceColi infectionESBL resistanceGlobal epidemiologyFluoroquinolone resistanceQueen's HospitalBla CTXESBL genesMolecular epidemiologyResistance profilesMolecular patternsAfrican settingClinical sourcesHospitalE. coliEpidemiologyST131Genomic Epidemiology of Penicillin-Nonsusceptible Pneumococci with Nonvaccine Serotypes Causing Invasive Disease in the United States
Andam CP, Mitchell PK, Callendrello A, Chang Q, Corander J, Chaguza C, McGee L, Beall BW, Hanage WP. Genomic Epidemiology of Penicillin-Nonsusceptible Pneumococci with Nonvaccine Serotypes Causing Invasive Disease in the United States. Journal Of Clinical Microbiology 2017, 55: 1104-1115. PMID: 28100596, PMCID: PMC5377837, DOI: 10.1128/jcm.02453-16.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overChildChild, PreschoolEpidemiological MonitoringEvolution, MolecularFemaleGenome, BacterialGenotypeHumansInfantInfant, NewbornMaleMiddle AgedMolecular EpidemiologyPenicillin ResistancePneumococcal InfectionsSequence Analysis, DNASerogroupStreptococcus pneumoniaeUnited StatesYoung AdultConceptsActive Bacterial Core surveillancePneumococcal Molecular Epidemiology NetworkNonvaccine typesVaccine typesPenicillin-nonsusceptible pneumococciAntibiotic-resistant strainsNVT pneumococciNonvaccine serotypesSerotype 35BPneumococcal serotypesInvasive diseaseSerogroups 23Core surveillanceEpidemiology NetworkDisease controlDisease prevalencePNSPGenomic epidemiologyFuture surveillanceVaccinationSerotypesResistant clonesSerotype switchingPneumococciDisease