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 determinants
2016
Effect of Fluoroquinolones and Macrolides on Eradication and Resistance of Haemophilus influenzae in Chronic Obstructive Pulmonary Disease
Pettigrew MM, Tsuji BT, Gent JF, Kong Y, Holden PN, Sethi S, Murphy TF. Effect of Fluoroquinolones and Macrolides on Eradication and Resistance of Haemophilus influenzae in Chronic Obstructive Pulmonary Disease. Antimicrobial Agents And Chemotherapy 2016, 60: 4151-4158. PMID: 27139476, PMCID: PMC4914697, DOI: 10.1128/aac.00301-16.Peer-Reviewed Original ResearchConceptsChronic obstructive pulmonary diseaseObstructive pulmonary diseaseH. influenzae isolatesH. influenzaePulmonary diseaseFluoroquinolone administrationInfluenzae isolatesDevelopment of resistanceHaemophilus influenzaeEradication of carriageEffects of macrolidesQuinolone resistance-determining regionsMICs of antibioticsEffects of fluoroquinolonesResistance-determining regionMacrolide administrationCOPD patientsEffects of antibioticsAzithromycin MICsAntibiotic useSusceptibility breakpointsAntibiotic susceptibilityMacrolide susceptibilityInfluenzaeAdministrationThe human microbiota: novel targets for hospital-acquired infections and antibiotic resistance
Pettigrew MM, Johnson JK, Harris AD. The human microbiota: novel targets for hospital-acquired infections and antibiotic resistance. Annals Of Epidemiology 2016, 26: 342-347. PMID: 26994507, PMCID: PMC4892961, DOI: 10.1016/j.annepidem.2016.02.007.Peer-Reviewed Original ResearchConceptsMultidrug-resistant organismsSpread of MDROsInfection control interventionsHealth care settingsCare settingsColonization resistanceControl interventionsTraditional infection control measuresInfection control measuresAntibiotic resistanceControl of MDROsHospital-acquired infectionsHealth care professionalsHospitalized patientsIntact microbiotaAntibiotic useMDRO transmissionEpidemiologic studiesInfection controlAntimicrobial stewardshipCare professionalsHealthy microbiotaExpansion of pathogensResistant organismsNovel target
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