2019
Non-typeable Haemophilus influenzae isolates from patients with chronic obstructive pulmonary disease contain new phase-variable modA methyltransferase alleles controlling phasevarions
Atack JM, Murphy TF, Pettigrew MM, Seib KL, Jennings MP. Non-typeable Haemophilus influenzae isolates from patients with chronic obstructive pulmonary disease contain new phase-variable modA methyltransferase alleles controlling phasevarions. Scientific Reports 2019, 9: 15963. PMID: 31685916, PMCID: PMC6828955, DOI: 10.1038/s41598-019-52429-6.Peer-Reviewed Original ResearchConceptsNon-typeable Haemophilus influenzaeChronic obstructive pulmonary diseaseObstructive pulmonary diseaseMiddle ear infectionPulmonary diseaseEar infectionsNTHi strainsHaemophilus influenzaeExacerbation of COPDCOPDMiddle earPatientsAllele distributionInfectionInfluenzaeBacterial pathogensDiseaseMultiple allelic variantsAllelic variantsGene expressionAllelesEpigenetic mechanismsLarge panelExacerbationExpression
2012
Upper Respiratory Tract Microbial Communities, Acute Otitis Media Pathogens, and Antibiotic Use in Healthy and Sick Children
Pettigrew MM, Laufer AS, Gent JF, Kong Y, Fennie KP, Metlay JP. Upper Respiratory Tract Microbial Communities, Acute Otitis Media Pathogens, and Antibiotic Use in Healthy and Sick Children. Applied And Environmental Microbiology 2012, 78: 6262-6270. PMID: 22752171, PMCID: PMC3416608, DOI: 10.1128/aem.01051-12.Peer-Reviewed Original ResearchConceptsAcute otitis mediaAntibiotic useS. pneumoniaeHealthy childrenM. catarrhalisH. influenzaeAcute otitis media pathogensConcurrent acute otitis mediaUpper respiratory tract infectionRespiratory tract infectionsOtitis media pathogensUpper respiratory tractCross-sectional studyYears of ageAOM pathogensTract infectionsOtitis mediaMoraxella catarrhalisRespiratory tractReal-time PCRNasal swabsSick childrenPrevention strategiesHaemophilus influenzaeStreptococcus pneumoniae
2011
Streptococcus pneumoniae Serotype 6C: an Intra- and Interclonal Complex Comparison
Thomas JC, Kong Y, Sabharwal V, Pelton SI, Pettigrew MM. Streptococcus pneumoniae Serotype 6C: an Intra- and Interclonal Complex Comparison. Journal Of Bacteriology 2011, 193: 3409-3410. PMID: 21551297, PMCID: PMC3133277, DOI: 10.1128/jb.05079-11.Peer-Reviewed Original Research
2009
Molecular Epidemiology of Pediatric Pneumococcal Empyema from 2001 to 2007 in Utah
Byington CL, Hulten KG, Ampofo K, Sheng X, Pavia AT, Blaschke AJ, Pettigrew M, Korgenski K, Daly J, Mason EO. Molecular Epidemiology of Pediatric Pneumococcal Empyema from 2001 to 2007 in Utah. Journal Of Clinical Microbiology 2009, 48: 520-525. PMID: 20018815, PMCID: PMC2815589, DOI: 10.1128/jcm.01200-09.Peer-Reviewed Original ResearchConceptsUtah childrenPCV-7Nonvaccine serotypesPneumococcal empyemaMolecular epidemiologyStreptococcus pneumoniae serotype 1Pneumococcal conjugate vaccineSerotype 1Sequence typesCommon sequence typesEmpyema ratesSerotype replacementConjugate vaccineSerotype switchReplacement diseasePPE casesEmpyemaChildrenSerotypesHigh rateEpidemiologyLicensureMLSTVaccineIncidenceMultilocus Sequence Typing and Pulsed Field Gel Electrophoresis of Otitis Media Causing Pathogens
Thomas JC, Pettigrew MM. Multilocus Sequence Typing and Pulsed Field Gel Electrophoresis of Otitis Media Causing Pathogens. Methods In Molecular Biology 2009, 493: 179-190. PMID: 18839348, PMCID: PMC3581352, DOI: 10.1007/978-1-59745-523-7_11.Peer-Reviewed Original ResearchConceptsOtitis mediaMolecular epidemiologyMultilocus sequence typingMoraxella catarrhalisHaemophilus influenzaeStreptococcus pneumoniaeSequence typingPulsed-Field Gel ElectrophoresisEpidemiologyBacterial pathogensField gel electrophoresisType of studyResearch settingsCharacterization of isolatesPathogensCatarrhalisInfluenzaePneumoniae
2006
Variation in the Presence of Neuraminidase Genes among Streptococcus pneumoniae Isolates with Identical Sequence Types
Pettigrew MM, Fennie KP, York MP, Daniels J, Ghaffar F. Variation in the Presence of Neuraminidase Genes among Streptococcus pneumoniae Isolates with Identical Sequence Types. Infection And Immunity 2006, 74: 3360-3365. PMID: 16714565, PMCID: PMC1479257, DOI: 10.1128/iai.01442-05.Peer-Reviewed Original ResearchMeSH KeywordsBacterial Typing TechniquesChild, PreschoolGenetic VariationHumansInfantInfant, NewbornNeuraminidaseSequence Analysis, DNAStreptococcus pneumoniaeVirulenceConceptsPneumoniae isolatesSequence typesUpper respiratory tractNeuraminidase geneS. pneumoniae isolatesVirulence determinantsStreptococcus pneumoniae isolatesIdentical sequence typesYoung childrenAdditional virulence determinantsSialic acid-containing substratesCapsule typesMultilocus sequence typesOtitis mediaInvasive diseaseRespiratory tractCarriage isolatesPneumococcal clonesSame sequence typePneumococcal strainsImportant causeStreptococcus pneumoniaeMiddle earDifferent tissue sourcesPneumococcal neuraminidase