2012
Virulence of Streptococcus pneumoniae serotype 6C in experimental otitis media
Sabharwal V, Figueira M, Pelton SI, Pettigrew MM. Virulence of Streptococcus pneumoniae serotype 6C in experimental otitis media. Microbes And Infection 2012, 14: 712-718. PMID: 22414497, PMCID: PMC3382049, DOI: 10.1016/j.micinf.2012.02.008.Peer-Reviewed Original ResearchConceptsAcute otitis mediaExperimental otitis mediaPneumococcal conjugate vaccineOtitis mediaSerotype 6CInvasive pneumococcal diseaseOverall carriage rateLow-density infectionsMiddle ear infectionStreptococcus pneumoniae serotype 6CReplacement serotypesPneumococcal diseaseVaccine serotypesConjugate vaccineNonvaccine serotypesCarriage rateEar infectionsNasopharyngeal colonizationChinchilla modelStreptococcus pneumoniaeHost defenseSerotypesDisease potentialInfectionDisease
2010
Capacity of serotype 19A and 15B/C Streptococcus pneumoniae isolates for experimental otitis media: Implications for the conjugate vaccine
Laufer AS, Thomas JC, Figueira M, Gent JF, Pelton SI, Pettigrew MM. Capacity of serotype 19A and 15B/C Streptococcus pneumoniae isolates for experimental otitis media: Implications for the conjugate vaccine. Vaccine 2010, 28: 2450-2457. PMID: 20067753, PMCID: PMC2851619, DOI: 10.1016/j.vaccine.2009.12.078.Peer-Reviewed Original ResearchConceptsSerotype 19ASerotype 15B/CChinchilla otitis media modelMiddle ear infectionOtitis media modelDisease prevention effortsStreptococcus pneumoniae isolatesExperimental otitis mediaStreptococcus pneumoniae serotypesQuantitative PCRConjugate vaccineOtitis mediaEar infectionsPneumoniae isolatesVaccine formulationsPneumoniae serotypesSame sequence typeVaccine targetsPrevention effortsPathogenic potentialDifferent serotypesSequence typesSerotypesIsolatesVaccine
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 rateEpidemiologyLicensureMLSTVaccineIncidence
2005
Genomic Subtraction Followed by Dot Blot Screening of Streptococcus pneumoniae Clinical and Carriage Isolates Identifies Genetic Differences Associated with Strains That Cause Otitis Media
Pettigrew MM, Fennie KP. Genomic Subtraction Followed by Dot Blot Screening of Streptococcus pneumoniae Clinical and Carriage Isolates Identifies Genetic Differences Associated with Strains That Cause Otitis Media. Infection And Immunity 2005, 73: 2805-2811. PMID: 15845484, PMCID: PMC1087362, DOI: 10.1128/iai.73.5.2805-2811.2005.Peer-Reviewed Original ResearchConceptsMiddle ear isolatesEar isolatesOtitis mediaMiddle earOtitis media pathogenesisCerebrospinal fluid isolatesBacterial otitis mediaStreptococcus pneumoniae strainsMolecular epidemiological approachSpecific bacterial factorsCarriage isolatesPneumoniae strainsBacterial factorsDot-blot screeningBloodBrucella melitensisEpidemiological approachMeningitisFurther studiesYoung childrenPrecise roleCarriageMedium virulenceIsolatesEar
2004
Diversity and sharing of Haemophilus influenzae strains colonizing healthy children attending day-care centers
FARJO RS, FOXMAN B, PATEL MJ, ZHANG L, PETTIGREW MM, MCCOY SI, MARRS CF, GILSDORF JR. Diversity and sharing of Haemophilus influenzae strains colonizing healthy children attending day-care centers. The Pediatric Infectious Disease Journal 2004, 23: 41-46. PMID: 14743045, DOI: 10.1097/01.inf.0000106981.89572.d1.Peer-Reviewed Original ResearchMeSH KeywordsCarrier StateChild Day Care CentersChild, PreschoolCohort StudiesColony Count, MicrobialDNA, BacterialElectrophoresis, Gel, Pulsed-FieldFemaleGenotypeHaemophilus InfectionsHaemophilus influenzaeHumansIncidenceMaleMass ScreeningMichiganOtitis MediaPolymerase Chain ReactionReference ValuesRisk AssessmentSerotypingConceptsDay care centersH. influenzaeHealthy childrenH. influenzae organismsAcute otitis mediaH. influenzae colonizationH. influenzae strainsUnique strainsEnterobacterial repetitive intergenic consensus PCRThroat culturesOtitis mediaInitial screening techniqueNasopharyngeal colonizationPrevalence ratesColonizing strainsHaemophilus influenzaeHeterogeneity of strainInfluenzaeConsensus PCRRate of colonizationChildrenField gel electrophoresisSame strainPathogenic microorganismsEvidence of sharing