2012
Bacterial and viral interactions within the nasopharynx contribute to the risk of acute otitis media
Ruohola A, Pettigrew MM, Lindholm L, Jalava J, Räisänen KS, Vainionpää R, Waris M, Tähtinen PA, Laine MK, Lahti E, Ruuskanen O, Huovinen P. Bacterial and viral interactions within the nasopharynx contribute to the risk of acute otitis media. Journal Of Infection 2012, 66: 247-254. PMID: 23266462, PMCID: PMC3571106, DOI: 10.1016/j.jinf.2012.12.002.Peer-Reviewed Original ResearchConceptsRisk of AOMAcute otitis mediaMiddle ear effusionAOM groupRespiratory virusesAOM pathogensAcute symptomsOtitis mediaEar effusionM. catarrhalisAcute inflammatory signsNasopharyngeal bacterial colonizationRespiratory tract infectionsOtoscopic signsTract infectionsInflammatory signsNasopharyngeal samplesSymptomatic childrenNasopharyngeal bacteriaH. influenzaePneumatic otoscopyS. pneumoniaeViral interactionsBacterial colonizationEffusion
2011
Viral-Bacterial Interactions and Risk of Acute Otitis Media Complicating Upper Respiratory Tract Infection
Pettigrew MM, Gent JF, Pyles RB, Miller AL, Nokso-Koivisto J, Chonmaitree T. Viral-Bacterial Interactions and Risk of Acute Otitis Media Complicating Upper Respiratory Tract Infection. Journal Of Clinical Microbiology 2011, 49: 3750-3755. PMID: 21900518, PMCID: PMC3209086, DOI: 10.1128/jcm.01186-11.Peer-Reviewed Original ResearchMeSH KeywordsChild, PreschoolCohort StudiesComorbidityHaemophilus influenzaeHuman bocavirusHumansInfantMetapneumovirusMicrobial InteractionsMoraxella catarrhalisOtitis MediaPolymerase Chain ReactionProspective StudiesRespiratory Syncytial VirusesRespiratory Tract InfectionsRisk AssessmentStreptococcus pneumoniaeConceptsUpper respiratory tract infectionAcute otitis mediaRespiratory tract infectionsRespiratory syncytial virusOtitis mediaOtitis media riskTract infectionsViral loadSyncytial virusHaemophilus influenzaeStreptococcus pneumoniaeRespiratory Syncytial Virus LoadMedium-risk factorsRepeated-measures logistic regressionRSV viral loadViral-bacterial interactionsHigh viral loadSpecific virusesBacterial pathogensChildren ages 6Common complicationRespiratory virusesMedium riskProspective studyHuman bocavirus
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 ResearchMeSH KeywordsAnimalsChinchillaColony Count, MicrobialDisease Models, AnimalDNA, BacterialOtitis MediaPneumococcal VaccinesPolymerase Chain ReactionSerotypingStreptococcus pneumoniaeVirulenceConceptsSerotype 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
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
2002
Use of Pulsed-Field Gel Electrophoresis, Enterobacterial Repetitive Intergenic Consensus Typing, and Automated Ribotyping To Assess Genomic Variability among Strains of Nontypeable Haemophilus influenzae
Pettigrew M, Foxman B, Ecevit Z, Marrs C, Gilsdorf J. Use of Pulsed-Field Gel Electrophoresis, Enterobacterial Repetitive Intergenic Consensus Typing, and Automated Ribotyping To Assess Genomic Variability among Strains of Nontypeable Haemophilus influenzae. Journal Of Clinical Microbiology 2002, 40: 660-662. PMID: 11825990, PMCID: PMC153392, DOI: 10.1128/jcm.40.2.660-662.2002.Peer-Reviewed Original Research