2023
Priorities and Progress in Gram-positive Bacterial Infection Research by the Antibacterial Resistance Leadership Group: A Narrative Review
Doernberg S, Arias C, Altman D, Babiker A, Boucher H, Creech C, Cosgrove S, Evans S, Fowler V, Fritz S, Hamasaki T, Kelly B, Leal S, Liu C, Lodise T, Miller L, Munita J, Murray B, Pettigrew M, Ruffin F, Scheetz M, Shopsin B, Tran T, Turner N, Williams D, Zaharoff S, Holland T, Patel R, King H, Kinamon T, Dai W, Geres H, Deckard N, Schuler C, Bunn I, Sharma S, Wickward C, Waller J, Wilson H, Mehigan M, Ghazaryan V, Raterman E, Samuel T, Lee M. Priorities and Progress in Gram-positive Bacterial Infection Research by the Antibacterial Resistance Leadership Group: A Narrative Review. Clinical Infectious Diseases 2023, 77: s295-s304. PMID: 37843115, PMCID: PMC10578051, DOI: 10.1093/cid/ciad565.Peer-Reviewed Original ResearchConceptsAntibacterial Resistance Leadership GroupMRSA bloodstream infectionsMethicillin-resistant Staphylococcus aureusBloodstream infectionsClinical trialsPediatric community-acquired pneumoniaInfection researchEnterococcal bloodstream infectionsOptimal vancomycin dosingOptimization of dosingRole of dalbavancinCommunity-acquired pneumoniaShort-course therapyInterventional clinical trialsVancomycin-resistant enterococciVancomycin dosingPositive infectionsNovel agentsLife measuresTreat infectionsClinical practiceNarrative reviewInfectionPositive bacteriaStaphylococcus aureus
2022
Impact of antibiotics on off-target infant gut microbiota and resistance genes in cohort studies
Lebeaux RM, Madan JC, Nguyen QP, Coker MO, Dade EF, Moroishi Y, Palys TJ, Ross BD, Pettigrew MM, Morrison HG, Karagas MR, Hoen AG. Impact of antibiotics on off-target infant gut microbiota and resistance genes in cohort studies. Pediatric Research 2022, 92: 1757-1766. PMID: 35568730, PMCID: PMC9659678, DOI: 10.1038/s41390-022-02104-w.Peer-Reviewed Original ResearchConceptsAntibiotic exposureCohort studyDay careDay care attendanceInfant gut microbiotaAntibiotic resistance genesCare attendanceImpact of antibioticsAntibiotic useStool samplesGut microbiotaInfantsGut microbiomeStudy designBacteroides fragilisAntibioticsBackgroundYoung childrenNovel findingsSubsequent exposureExposureFirst yearFurther investigationBaselineResistance genesCareComparison of the Respiratory Resistomes and Microbiota in Children Receiving Short versus Standard Course Treatment for Community-Acquired Pneumonia
Pettigrew MM, Kwon J, Gent JF, Kong Y, Wade M, Williams DJ, Creech CB, Evans S, Pan Q, Walter EB, Martin JM, Gerber JS, Newland JG, Hofto ME, Staat MA, Fowler VG, Chambers HF, Huskins WC. Comparison of the Respiratory Resistomes and Microbiota in Children Receiving Short versus Standard Course Treatment for Community-Acquired Pneumonia. MBio 2022, 13: e00195-22. PMID: 35323040, PMCID: PMC9040816, DOI: 10.1128/mbio.00195-22.Peer-Reviewed Original ResearchConceptsCommunity-acquired pneumoniaShort-course strategyBeta-lactam therapyTreatment strategiesAntibiotic useRespiratory microbiomePediatric community-acquired pneumoniaDays of antibioticsShorter antibiotic coursesStandard-strategy groupDays of therapyStandard treatment strategyAntibiotic resistanceAdditional rationaleEffectiveness of interventionsImpact of durationAntibiotic coursesThroat swabsCourse strategyAntibiotic treatmentPediatric pneumoniaCourse treatmentLow prevalencePneumoniaAntibiotic resistance determinantsShort- vs Standard-Course Outpatient Antibiotic Therapy for Community-Acquired Pneumonia in Children
Williams DJ, Creech CB, Walter EB, Martin JM, Gerber JS, Newland JG, Howard L, Hofto ME, Staat MA, Oler RE, Tuyishimire B, Conrad TM, Lee MS, Ghazaryan V, Pettigrew MM, Fowler VG, Chambers HF, Zaoutis TE, Evans S, Huskins WC, Team A. Short- vs Standard-Course Outpatient Antibiotic Therapy for Community-Acquired Pneumonia in Children. JAMA Pediatrics 2022, 176: 253-261. PMID: 35040920, PMCID: PMC8767493, DOI: 10.1001/jamapediatrics.2021.5547.Peer-Reviewed Original ResearchConceptsChildhood community-acquired pneumoniaAntibiotic-associated adverse effectsShort-course strategyClinical responseAdverse effectsDouble-blind placebo-controlled clinical trialPlacebo-controlled clinical trialEnd pointDays of antibioticsEarly clinical improvementInadequate clinical responseOutpatient antibiotic therapyShorter antibiotic durationsSimilar clinical responseCommunity-Acquired PneumoniaPrimary end pointComposite end pointResolution of symptomsAntibiotic treatment strategiesSubset of childrenAntibiotic daysAntibiotic durationClinical improvementAntibiotic therapyInitial treatment
2016
Association of sputum microbiota profiles with severity of community-acquired pneumonia in children
Pettigrew MM, Gent JF, Kong Y, Wade M, Gansebom S, Bramley AM, Jain S, Arnold SL, McCullers JA. Association of sputum microbiota profiles with severity of community-acquired pneumonia in children. BMC Infectious Diseases 2016, 16: 317. PMID: 27391033, PMCID: PMC4939047, DOI: 10.1186/s12879-016-1670-4.Peer-Reviewed Original ResearchConceptsCommunity-acquired pneumoniaCAP severityMicrobiota profilesClinical courseRespiratory microbiotaPediatric community-acquired pneumoniaIntensive care unit admissionNasopharyngeal/oropharyngeal samplesCare unit admissionOdds of lengthInduced sputum samplesRespiratory tract microbiotaOP samplesRibosomal RNA sequencingUnit admissionDecreased oddsSputum samplesChildren 6Oropharyngeal samplesMicrobiota influenceChildren 5Logistic regressionSputumSeverityPneumonia
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 colonizationEffusionVirulence 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
2011
Microbial Communities of the Upper Respiratory Tract and Otitis Media in Children
Laufer AS, Metlay JP, Gent JF, Fennie KP, Kong Y, Pettigrew MM. Microbial Communities of the Upper Respiratory Tract and Otitis Media in Children. MBio 2011, 2: 10.1128/mbio.00245-10. PMID: 21285435, PMCID: PMC3031303, DOI: 10.1128/mbio.00245-10.Peer-Reviewed Original ResearchConceptsOtitis mediaUpper respiratory tractS. pneumoniaeRespiratory tractOtitis media treatmentRespiratory virus seasonS. pneumoniae colonizationOtitis media pathogensCross-sectional studyOtitis media susceptibilityPneumoniae colonizationDecreased riskPneumococcal colonizationNasal swabsFrequent causePrevention strategiesStreptococcus pneumoniaeDemographic dataProtective floraPneumoniaeSwabsChildrenCausal pathwaysTractRisk
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
2007
Genetic Diversity of Paired Middle-Ear and Pharyngeal Nontypeable Haemophilus influenzae Isolates from Children with Acute Otitis Media
Berrens ZJ, Marrs CF, Pettigrew MM, Sandstedt SA, Patel M, Gilsdorf JR. Genetic Diversity of Paired Middle-Ear and Pharyngeal Nontypeable Haemophilus influenzae Isolates from Children with Acute Otitis Media. Journal Of Clinical Microbiology 2007, 45: 3764-3767. PMID: 17804648, PMCID: PMC2168485, DOI: 10.1128/jcm.00964-07.Peer-Reviewed Original ResearchRespiratory symptoms among infants at risk for asthma: association with surfactant protein A haplotypes
Pettigrew MM, Gent JF, Zhu Y, Triche EW, Belanger KD, Holford TR, Bracken MB, Leaderer BP. Respiratory symptoms among infants at risk for asthma: association with surfactant protein A haplotypes. BMC Medical Genomics 2007, 8: 15. PMID: 17407567, PMCID: PMC1852548, DOI: 10.1186/1471-2350-8-15.Peer-Reviewed Original ResearchConceptsPersistent coughSurfactant protein ARespiratory symptomsWhite infantsClinician-diagnosed asthmaInfant respiratory symptomsRespiratory symptom frequencyRisk of wheezeCohort of infantsSingle nucleotide polymorphismsMonths of ageQuarterly telephone interviewsLogistic regression modelsRace/ethnicityStudy infantsNewborn infantsSymptom frequencyInfant's birthStandardized questionnaireCoughWheezeAsthmaInfantsTelephone interviewsOlder children
2002
Identification of the Lipooligosaccharide Biosynthesis Gene lic2B as a Putative Virulence Factor in Strains of Nontypeable Haemophilus influenzae That Cause Otitis Media
Pettigrew M, Foxman B, Marrs C, Gilsdorf J. Identification of the Lipooligosaccharide Biosynthesis Gene lic2B as a Putative Virulence Factor in Strains of Nontypeable Haemophilus influenzae That Cause Otitis Media. Infection And Immunity 2002, 70: 3551-3556. PMID: 12065495, PMCID: PMC128108, DOI: 10.1128/iai.70.7.3551-3556.2002.Peer-Reviewed Original ResearchConceptsMiddle ear isolatesNT H. influenzaeOtitis mediaH. influenzaeEar isolatesThroat isolatesHaemophilus influenzaeMiddle earAcute otitis mediaDay careNontypeable Haemophilus influenzaeVirulence factorsSpecific virulence factorsType B isolatesOM pathogenesisPutative virulence factorsH. influenzae geneImportant causeClinical isolatesPathogenic processesInfluenzaeB isolatesAcid levelsAmino acid levelsNontypeable