2022
Short- 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
2018
Gastrointestinal Microbiota Disruption and Risk of Colonization With Carbapenem-resistant Pseudomonas aeruginosa in Intensive Care Unit Patients
Pettigrew MM, Gent JF, Kong Y, Halpin AL, Pineles L, Harris AD, Johnson JK. Gastrointestinal Microbiota Disruption and Risk of Colonization With Carbapenem-resistant Pseudomonas aeruginosa in Intensive Care Unit Patients. Clinical Infectious Diseases 2018, 69: 604-613. PMID: 30383203, PMCID: PMC6669284, DOI: 10.1093/cid/ciy936.Peer-Reviewed Original ResearchConceptsCarbapenem-resistant Pseudomonas aeruginosaIntensive care unit patientsCare unit patientsPiperacillin-tazobactamUnit patientsICU patientsMarker of riskMaryland Medical CenterRisk of colonizationRibosomal RNA gene sequencingRNA gene sequencingAdmission swabCRPA infectionPseudomonas aeruginosaICU admissionPatient characteristicsMicrobiota disruptionMedical CenterGastrointestinal tractAdditional swabsAntimicrobial exposureLower riskEvaluated associationsPatientsProtective role
2017
Risk Factors and Outcomes Associated with Multidrug-Resistant Acinetobacter baumannii upon Intensive Care Unit Admission
Blanco N, Harris AD, Rock C, Johnson JK, Pineles L, Bonomo RA, Srinivasan A, Pettigrew MM, Thom KA. Risk Factors and Outcomes Associated with Multidrug-Resistant Acinetobacter baumannii upon Intensive Care Unit Admission. Antimicrobial Agents And Chemotherapy 2017, 62: 10.1128/aac.01631-17. PMID: 29133567, PMCID: PMC5740370, DOI: 10.1128/aac.01631-17.Peer-Reviewed Original ResearchConceptsMedical intensive care unitSurgical intensive care unitIntensive care unitICU admissionRisk factorsCare unitIntensive care unit admissionBroad-spectrum antibiotic useMultidrug-resistant Acinetobacter baumanniiPositive clinical cultureCare unit admissionRetrospective cohort analysisAssociated risk factorsEmpirical antibiotic selectionInfection control practicesPrevalence of MDRMaryland Medical CenterPerirectal surveillance culturesImportant nosocomial pathogenUnit admissionAdult patientsICU typePrevious admissionsCurrent hospitalizationActive surveillance
2016
Density, Serotype Diversity, and Fitness of Streptococcus pneumoniae in Upper Respiratory Tract Cocolonization With Nontypeable Haemophilus influenzae
Lewnard JA, Huppert A, Givon-Lavi N, Pettigrew MM, Regev-Yochay G, Dagan R, Weinberger DM. Density, Serotype Diversity, and Fitness of Streptococcus pneumoniae in Upper Respiratory Tract Cocolonization With Nontypeable Haemophilus influenzae. The Journal Of Infectious Diseases 2016, 214: 1411-1420. PMID: 27540112, PMCID: PMC5079371, DOI: 10.1093/infdis/jiw381.Peer-Reviewed Original ResearchConceptsNontypeable Haemophilus influenzaeNTHi colonizationPneumococcal serotypesChildren 2Haemophilus influenzaeStreptococcus pneumoniaeUpper respiratory tract carriageSerotype diversityComplex otitis mediaNasopharyngeal pneumococcal carriagePneumococcal conjugate vaccineImmune-evasive phenotypePneumococcal serotype diversityNTHi carriageConjugate vaccinePneumococcal carriageOtitis mediaStudy visitNeutrophil resistanceCapsular thicknessLogistic regressionDensity associationsCarriageSerotypesColonization densityAssociation 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 regressionSputumSeverityPneumoniaThe 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 targetPseudomonas aeruginosa Colonization in the Intensive Care Unit: Prevalence, Risk Factors, and Clinical Outcomes
Harris AD, Jackson SS, Robinson G, Pineles L, Leekha S, Thom KA, Wang Y, Doll M, Pettigrew MM, Johnson JK. Pseudomonas aeruginosa Colonization in the Intensive Care Unit: Prevalence, Risk Factors, and Clinical Outcomes. Infection Control And Hospital Epidemiology 2016, 37: 544-548. PMID: 26832307, PMCID: PMC4833506, DOI: 10.1017/ice.2015.346.Peer-Reviewed Original ResearchConceptsIntensive care unitPseudomonas aeruginosa colonizationRisk factorsICU admissionClinical culturesCurrent hospitalizationAeruginosa colonizationCare unitIntensive care unit admissionP. aeruginosaSurgical intensive care unitPositive clinical cultureCare unit admissionEmpirical antibiotic therapyTertiary care hospitalType of ICUSignificant risk factorsP. aeruginosa colonizationRapid diagnostic testingPerirectal surveillance culturesUnit admissionCohort studyAntibiotic therapyCare hospitalClinical outcomes
2015
Epidemiological Markers for Interactions Among Streptococcus pneumoniae, Haemophilus influenzae, and Staphylococcus aureus in Upper Respiratory Tract Carriage
Lewnard JA, Givon-Lavi N, Huppert A, Pettigrew MM, Regev-Yochay G, Dagan R, Weinberger DM. Epidemiological Markers for Interactions Among Streptococcus pneumoniae, Haemophilus influenzae, and Staphylococcus aureus in Upper Respiratory Tract Carriage. The Journal Of Infectious Diseases 2015, 213: 1596-1605. PMID: 26704617, PMCID: PMC4837906, DOI: 10.1093/infdis/jiv761.Peer-Reviewed Original ResearchMeSH KeywordsCarrier StateChild, PreschoolFemaleHaemophilus InfectionsHaemophilus influenzaeHeptavalent Pneumococcal Conjugate VaccineHumansInfantIsraelLongitudinal StudiesMalePneumococcal InfectionsRespiratory Tract InfectionsRisk FactorsStaphylococcal InfectionsStaphylococcus aureusStreptococcus pneumoniaeVaccines, ConjugateConceptsPneumococcal serotype replacementH. influenzaeSerotype replacementS. pneumoniaeHaemophilus influenzaeStreptococcus pneumoniaePneumococcal conjugate vaccine trialUpper respiratory tract carriagePneumococcal vaccine introductionS. aureus carriageMonths of ageStaphylococcus aureusPCV7 recipientsAureus carriageVaccine introductionVaccine trialsCarriage patternsConfounding factorsClinical interventionsInfluenzaeEpidemiological markersBedouin childrenPneumoniaeCarriageS. aureus
2014
Detection of livestock-associated methicillin-resistant Staphylococcus aureus among swine workers in Romania
Huang E, Gurzau AE, Hanson BM, Kates AE, Smith TC, Pettigrew MM, Spinu M, Rabinowitz PM. Detection of livestock-associated methicillin-resistant Staphylococcus aureus among swine workers in Romania. Journal Of Infection And Public Health 2014, 7: 323-332. PMID: 24821273, DOI: 10.1016/j.jiph.2014.03.008.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgricultureAnimal HusbandryAnimalsCarrier StateFemaleHumansLivestockMaleMethicillin-Resistant Staphylococcus aureusMiddle AgedMolecular TypingNasal MucosaOccupational ExposureOropharynxPrevalenceRomaniaStaphylococcal InfectionsStaphylococcal Protein ASurveys and QuestionnairesSwineConceptsLivestock-associated methicillin-resistant Staphylococcus aureusMethicillin-resistant Staphylococcus aureusLA-MRSASwine workersLivestock workersSpa type t034Commercial pig farmsCommunity-associated MRSA strainsPig farmsDevastating pathogenStaphylococcus aureusFarmsCommercial movementsSubstantial health risksMRSA carriersMRSA colonizationHigh morbidityRisk factorsMRSA strainsHealth statusBiosafety practicesCommunity contactsProduction facilitiesPathogensEpidemiology
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
Multiple chlamydia infection among young women: comparing the role of individual- and neighbourhood-level measures of socioeconomic status
Biello KB, Pettigrew MM, Niccolai LM. Multiple chlamydia infection among young women: comparing the role of individual- and neighbourhood-level measures of socioeconomic status. Sexually Transmitted Infections 2011, 87: 560. PMID: 21940727, PMCID: PMC3438508, DOI: 10.1136/sextrans-2011-050185.Peer-Reviewed Original ResearchConceptsIndividual-level socioeconomic statusChlamydia diagnosisYoung womenSocioeconomic statusChlamydia infectionNeighborhood-level socioeconomic statusIndividual-level SESNeighborhood socioeconomic statusHigh burdenNeighborhood-level povertyMultiple infectionsSocioeconomic disparitiesDiagnosisNeighborhood-level measuresWomenInfectionHigh-poverty areasLow-poverty areasValid measureBurdenIndividual-level measuresStatusUseful measureIndividual-level variablesChlamydiaMicrobial 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 pathwaysTractRiskBehavioural sources of repeat Chlamydia trachomatis infections: importance of different sex partners
Niccolai LM, Livingston KA, Laufer AS, Pettigrew MM. Behavioural sources of repeat Chlamydia trachomatis infections: importance of different sex partners. Sexually Transmitted Infections 2011, 87: 248. PMID: 21212380, PMCID: PMC5438152, DOI: 10.1136/sti.2010.045484.Peer-Reviewed Original ResearchConceptsChlamydia trachomatis infectionRepeat infectionsNew sex partnerTrachomatis infectionSex partnersC. trachomatisRepeat Chlamydia trachomatis infectionsPopulation attributable risk percentageC. trachomatis infectionCumulative incidenceDifferent-sex partnersRisk percentageYounger ageInfectionBehavioral surveyBaselineDifferent genotypesTrachomatisWomenMolecular methodsGenotypesPatientsFollowIncidence
2009
Comparison of Sexual Partnership Characteristics and Associations with Inconsistent Condom Use among a Sample of Adolescents and Adult Women Diagnosed with Chlamydia trachomatis
Foulkes HB, Pettigrew MM, Livingston KA, Niccolai LM. Comparison of Sexual Partnership Characteristics and Associations with Inconsistent Condom Use among a Sample of Adolescents and Adult Women Diagnosed with Chlamydia trachomatis. Journal Of Women's Health 2009, 18: 393-399. PMID: 19245304, DOI: 10.1089/jwh.2008.0840.Peer-Reviewed Original ResearchConceptsInconsistent condom useCondom useSexual partnershipsPrevalent chlamydia infectionSexual partnership characteristicsPartner age differenceChlamydia infectionMain partnershipsChlamydia trachomatisAdult womenPrevention effortsSexual relationshipsAdolescent femalesPartnership durationFemale adolescentsPartnership characteristicsSample of adolescentsShort durationAdolescentsInfectionWomenDurationType of partner
2008
Microbial Interactions during Upper Respiratory Tract Infections - Volume 14, Number 10—October 2008 - Emerging Infectious Diseases journal - CDC
Pettigrew MM, Gent JF, Revai K, Patel JA, Chonmaitree T. Microbial Interactions during Upper Respiratory Tract Infections - Volume 14, Number 10—October 2008 - Emerging Infectious Diseases journal - CDC. Emerging Infectious Diseases 2008, 14: 1584-1591. PMID: 18826823, PMCID: PMC2609881, DOI: 10.3201/eid1410.080119.Peer-Reviewed Original ResearchMeSH KeywordsChild, PreschoolCohort StudiesFemaleHaemophilus InfectionsHaemophilus influenzaeHumansInfantMaleMoraxella catarrhalisMoraxellaceae InfectionsNasopharynxOtitis MediaProspective StudiesRespiratory Tract InfectionsStaphylococcal InfectionsStaphylococcus aureusStreptococcus pneumoniaeSuperinfectionConceptsUpper respiratory tract infectionH. influenzaeInfectious Diseases journal - CDCRespiratory tract infectionsS. pneumoniae colonizationHealthy children 6Months of ageS. aureusProspective cohortTract infectionsPneumoniae colonizationVaccination strategiesAntimicrobial therapyMoraxella catarrhalisChildren 6M. catarrhalisS. pneumoniaeHaemophilus influenzaeStreptococcus pneumoniaeBacterial infectionsSpecific bacterial speciesInfluenzaeLikelihood of colonizationCatarrhalisStaphylococcus aureus
2007
Behavioral intentions in sexual partnerships following a diagnosis of Chlamydia trachomatis
Niccolai LM, Livingston KA, Teng F, Pettigrew MM. Behavioral intentions in sexual partnerships following a diagnosis of Chlamydia trachomatis. Preventive Medicine 2007, 46: 170-176. PMID: 17936349, DOI: 10.1016/j.ypmed.2007.08.013.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
2006
Association of surfactant protein A polymorphisms with otitis media in infants at risk for asthma
Pettigrew MM, Gent JF, Zhu Y, Triche EW, Belanger KD, Holford TR, Bracken MB, Leaderer BP. Association of surfactant protein A polymorphisms with otitis media in infants at risk for asthma. BMC Medical Genomics 2006, 7: 68. PMID: 16884531, PMCID: PMC1557482, DOI: 10.1186/1471-2350-7-68.Peer-Reviewed Original ResearchConceptsOtitis mediaWhite infantsInfant respiratory symptomsPhysician-diagnosed asthmaCohort of infantsLarger confirmatory studiesSurfactant proteinsInnate immune responseMonths of ageQuarterly telephone interviewsLogistic regression modelsRace/ethnicityRespiratory symptomsCommon infectionsProspective studyImmune responseStudy populationInfant's birthStandardized questionnaireInfantsConclusionThese resultsAsthmaTelephone interviewsConfirmatory studiesWhole blood
2004
Association of early‐onset otitis media in infants and exposure to household mould
Pettigrew MM, Gent JF, Triche EW, Belanger KD, Bracken MB, Leaderer BP. Association of early‐onset otitis media in infants and exposure to household mould. Paediatric And Perinatal Epidemiology 2004, 18: 441-447. PMID: 15535820, DOI: 10.1111/j.1365-3016.2004.00596.x.Peer-Reviewed Original ResearchConceptsEarly otitis mediaOtitis mediaMonths of ageHousehold moldInfant respiratory symptomsAcute otitis mediaPhysician-diagnosed asthmaCohort of infantsOtitis media episodesRecurrent otitis mediaEarly onset otitis mediaMonths of lifeQuarterly telephone interviewsRespiratory symptomsCommon infectionsProspective studyPotential confoundersHigh riskInfant's birthStandardised questionnaireTelephone interviewsMonthsAsthmaEarly childhoodFurther studiesDiversity 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