Featured Publications
Within-host microevolution of Streptococcus pneumoniae is rapid and adaptive during natural colonisation
Chaguza C, Senghore M, Bojang E, Gladstone RA, Lo SW, Tientcheu PE, Bancroft RE, Worwui A, Foster-Nyarko E, Ceesay F, Okoi C, McGee L, Klugman KP, Breiman RF, Barer MR, Adegbola RA, Antonio M, Bentley SD, Kwambana-Adams BA. Within-host microevolution of Streptococcus pneumoniae is rapid and adaptive during natural colonisation. Nature Communications 2020, 11: 3442. PMID: 32651390, PMCID: PMC7351774, DOI: 10.1038/s41467-020-17327-w.Peer-Reviewed Original ResearchMeSH KeywordsEvolution, MolecularGeneticsGenome, BacterialHumansPneumococcal InfectionsStreptococcus pneumoniaeWhole Genome SequencingConceptsNatural colonisationHost microevolutionNucleotide substitution ratesWhole-genome sequencingGenomic evolutionNeutral evolutionGenetic diversityHomologous recombinationParallel evolutionGenomic changesAdhesion genesSubstitution ratesHuman-adapted pathogenMicroevolutionStrain variantsColonisationImmune evasionStreptococcus pneumoniaeAntibiotic resistanceGenesEvolutionSequencingDiversityNasopharyngeal carriageBacteria
2024
Expansion of pneumococcal serotype 23F and 14 lineages with genotypic changes in capsule polysaccharide locus and virulence gene profiles post introduction of pneumococcal conjugate vaccine in Blantyre, Malawi.
Cave R, Kalizang'oma A, Chaguza C, Mwalukomo T, Kamng’ona A, Brown C, Msefula J, Bonomali F, Nyirenda R, Swarthout T, Kwambana-Adams B, French N, Heyderman R. Expansion of pneumococcal serotype 23F and 14 lineages with genotypic changes in capsule polysaccharide locus and virulence gene profiles post introduction of pneumococcal conjugate vaccine in Blantyre, Malawi. Microbial Genomics 2024, 10 PMID: 38896467, DOI: 10.1099/mgen.0.001264.Peer-Reviewed Original ResearchConceptsGenes associated with antibiotic resistanceAntibiotic resistancePneumococcal conjugate vaccineVirulence factor expressionDNA binding sitesVaccine serotypesB-type domainWzy proteinsPolysaccharide locusConjugate vaccineCarriage of vaccine serotypesIntroduction of pneumococcal conjugate vaccinesCapsule polysaccharideEmergent lineagesGenetic changesStreptococcus pneumoniae</i>Vaccination coverageLineagesPersistent carriageGenotypic changesBinding sitesSerotypesMultidrug resistanceT mutationVirulenceDengueSeq: a pan-serotype whole genome amplicon sequencing protocol for dengue virus
Vogels C, Hill V, Breban M, Chaguza C, Paul L, Sodeinde A, Taylor-Salmon E, Ott I, Petrone M, Dijk D, Jonges M, Welkers M, Locksmith T, Dong Y, Tarigopula N, Tekin O, Schmedes S, Bunch S, Cano N, Jaber R, Panzera C, Stryker I, Vergara J, Zimler R, Kopp E, Heberlein L, Herzog K, Fauver J, Morrison A, Michael S, Grubaugh N. DengueSeq: a pan-serotype whole genome amplicon sequencing protocol for dengue virus. BMC Genomics 2024, 25: 433. PMID: 38693476, PMCID: PMC11062901, DOI: 10.1186/s12864-024-10350-x.Peer-Reviewed Original ResearchMeSH KeywordsDengueDengue VirusGenome, ViralGenotypeHigh-Throughput Nucleotide SequencingHumansRNA, ViralSerogroupWhole Genome SequencingConceptsAmplicon sequencing protocolsPrimer schemeSequencing protocolGenomic surveillanceDengue virus serotypesAmplicon sequencing workflowClinical specimensHigh genome coverageWhole-genome sequencingDengue virusVirus serotypesGenome coverageVirus stocksGenetic diversitySequencing instrumentsSequencing workflowGenotype VIDiverse serotypesSequence of samplesGenotype IVPrimersSurveillance of dengue virusSerotypesVirus copiesSerotype-specific
2022
Widespread sharing of pneumococcal strains in a rural African setting: proximate villages are more likely to share similar strains that are carried at multiple timepoints
Senghore M, Chaguza C, Bojang E, Tientcheu P, Bancroft R, Lo S, Gladstone R, McGee L, Worwui A, Foster-Nyarko E, Ceesay F, Okoi C, Klugman K, Breiman R, Bentley S, Adegbola R, Antonio M, Hanage W, Kwambana-Adams B. Widespread sharing of pneumococcal strains in a rural African setting: proximate villages are more likely to share similar strains that are carried at multiple timepoints. Microbial Genomics 2022, 8: 000732. PMID: 35119356, PMCID: PMC8942022, DOI: 10.1099/mgen.0.000732.Peer-Reviewed Original ResearchMeSH KeywordsAfricaHumansInfantMicrobiotaNasopharynxPneumococcal InfectionsRural PopulationSerogroupStreptococcus pneumoniaeWhole Genome SequencingConceptsTransmission dynamicsRural African settingLogistic regression modelsPCV7 serotypesLongitudinal cohortCarriage episodesUnique serotypesPneumococcal strainsInfantsPairwise SNP distanceMultiple timepointsAfrican settingSNP distanceSustained colonizationRegression modelsSaharan AfricaCarriageSerotypesRural AfricaIntra-strain diversityPneumococcal genomeNeighbouring villagesCohort
2021
Streptococcus pneumoniae serotypes that frequently colonise the human nasopharynx are common recipients of penicillin-binding protein gene fragments from Streptococcus mitis
Kalizang'oma A, Chaguza C, Gori A, Davison C, Beleza S, Antonio M, Beall B, Goldblatt D, Kwambana-Adams B, Bentley SD, Heyderman RS. Streptococcus pneumoniae serotypes that frequently colonise the human nasopharynx are common recipients of penicillin-binding protein gene fragments from Streptococcus mitis. Microbial Genomics 2021, 7: 000622. PMID: 34550067, PMCID: PMC8715442, DOI: 10.1099/mgen.0.000622.Peer-Reviewed Original ResearchMeSH KeywordsBacterial ProteinsBeta-Lactam ResistanceDrug Resistance, BacterialGene Transfer, HorizontalGenes, BacterialHumansMicrobial Sensitivity TestsNasopharynxPenicillin-Binding ProteinsPenicillinsPhylogenyPneumococcal InfectionsPneumococcal VaccinesSerogroupStreptococcusStreptococcus mitisStreptococcus oralisStreptococcus pneumoniaeWhole Genome SequencingConceptsMinimum inhibitory concentrationPneumococcal vaccine programsFirst-line treatmentHigh minimum inhibitory concentrationsStreptococcus pneumoniae serotypesPneumococcal population structurePneumococcal serotypes 6ABeta-lactam antibioticsLonger carriage durationBeta-lactam resistanceImportant global pathogenPneumococcal diseaseBacterial pneumoniaPneumococcal serotypesVaccine programSerotypes 6APneumoniae serotypesΒ-lactam susceptibilityPenicillin-binding protein (PBP) genesHuman nasopharynxCarriage durationCommensal streptococciCommon recipientInhibitory concentrationStreptococci
2019
Molecular epidemiology of G12 rotavirus strains during eight consecutive epidemic seasons in the Basque Country (North of Spain), 2010–2018
Arana A, Jere KC, Chaguza C, Montes M, Alkorta M, Iturriza-Gomara M, Cilla G. Molecular epidemiology of G12 rotavirus strains during eight consecutive epidemic seasons in the Basque Country (North of Spain), 2010–2018. Infection Genetics And Evolution 2019, 71: 67-75. PMID: 30905774, DOI: 10.1016/j.meegid.2019.03.016.Peer-Reviewed Original ResearchMeSH KeywordsEpidemicsEvolution, MolecularGastroenteritisGenome, ViralHumansMolecular EpidemiologyPhylogenyRotavirusRotavirus InfectionsSeasonsSpainWhole Genome Sequencing
2017
Adaptation... that's what you need?
Chaguza C, Bentley SD. Adaptation... that's what you need? Nature Reviews Microbiology 2017, 15: 452-452. PMID: 28690321, DOI: 10.1038/nrmicro.2017.78.Peer-Reviewed Original Research