1999
Population Dynamics of a Naturally Occurring Heterogeneous Mixture of Borrelia burgdorferiClones
Hofmeister E, Glass G, Childs J, Persing D. Population Dynamics of a Naturally Occurring Heterogeneous Mixture of Borrelia burgdorferiClones. Infection And Immunity 1999, 67: 5709-5716. PMID: 10531219, PMCID: PMC96945, DOI: 10.1128/iai.67.11.5709-5716.1999.Peer-Reviewed Original ResearchConceptsC3H/HeJ miceC.B-17 miceLarval Ixodes scapularis ticksMajority of miceB. burgdorferiInfected nymphal ticksIxodes scapularis ticksBurgdorferi antibodiesSecondary challengeHeJ micePrimary isolatesSequential isolatesC3H miceSequential infectionMiceMonoclonal antibodiesBorrelia burgdorferiC expressionScapularis ticksClonal dominanceUnique isolatesMacrorestriction analysisOspC proteinsClonal groupsEnzootic siteMolecular Cloning and Characterization of the Ehrlichia chaffeensis Variable-Length PCR Target: an Antigen-Expressing Gene That Exhibits Interstrain Variation
Sumner J, Childs J, Paddock C. Molecular Cloning and Characterization of the Ehrlichia chaffeensis Variable-Length PCR Target: an Antigen-Expressing Gene That Exhibits Interstrain Variation. Journal Of Clinical Microbiology 1999, 37: 1447-1453. PMID: 10203503, PMCID: PMC84798, DOI: 10.1128/jcm.37.5.1447-1453.1999.Peer-Reviewed Original ResearchConceptsOpen reading frameAmino acid sequenceApparent molecular massE. chaffeensisGenomic libraryMolecular cloningReading frameAcid sequenceDifferentiation of isolatesPCR targetsClose homologyMolecular massNucleotide sequencingImmunoreactive proteinDifferent isolatesDNA samplesInterstrain variationGenesRepeat unitsMolecular databasesCell culturesAmblyomma americanum ticksSequencePCR detectionChaffeensisSerologic Testing for Human Granulocytic Ehrlichiosis at a National Referral Center
Comer J, Nicholson W, Olson J, Childs J. Serologic Testing for Human Granulocytic Ehrlichiosis at a National Referral Center. Journal Of Clinical Microbiology 1999, 37: 558-564. PMID: 9986812, PMCID: PMC84468, DOI: 10.1128/jcm.37.3.558-564.1999.Peer-Reviewed Original ResearchConceptsHGE agentSerum samplesNational referral centerE. chaffeensis antigenSpecific etiologic agentState health departmentsE. chaffeensisHuman granulocytic ehrlichiosis (HGE) agentHuman granulocytic ehrlichiosisHuman monocytic ehrlichiosisReferral centerSerologic testingEhrlichial antigenAverage ageHealth departmentsHuman ehrlichiosisPatientsEtiologic agentProbable casesHigh titersIll individualsGranulocytic ehrlichiosisDisease controlIndirect immunofluorescenceMonocytic ehrlichiosis
1997
Isolation and characterization of Ehrlichia chaffeensis strains from patients with fatal ehrlichiosis
Paddock C, Sumner J, Shore G, Bartley D, Elie R, McQuade J, Martin C, Goldsmith C, Childs J. Isolation and characterization of Ehrlichia chaffeensis strains from patients with fatal ehrlichiosis. Journal Of Clinical Microbiology 1997, 35: 2496-2502. PMID: 9316896, PMCID: PMC229999, DOI: 10.1128/jcm.35.10.2496-2502.1997.Peer-Reviewed Original ResearchConceptsE. chaffeensisDH82 cellsEhrlichia chaffeensisArkansas isolateGroESL heat shock operonFatal ehrlichiosisMechanisms of diseasePulmonary insufficiencyClinical presentationMarked thrombocytopeniaSevere diseaseEhrlichial infectionCharacteristic manifestationsPatientsDays postinoculationMolecular evaluationChaffeensisPrimary isolationRRNA gene sequencesDiseaseIsolatesSpecific associationNew isolatesGene sequencesProtein geneAn indirect immunofluorescence assay using a cell culture-derived antigen for detection of antibodies to the agent of human granulocytic ehrlichiosis
Nicholson W, Comer J, Sumner J, Gingrich-Baker C, Coughlin R, Magnarelli L, Olson J, Childs J. An indirect immunofluorescence assay using a cell culture-derived antigen for detection of antibodies to the agent of human granulocytic ehrlichiosis. Journal Of Clinical Microbiology 1997, 35: 1510-1516. PMID: 9163471, PMCID: PMC229776, DOI: 10.1128/jcm.35.6.1510-1516.1997.Peer-Reviewed Original ResearchConceptsHuman granulocytic ehrlichiosisCell culture-derived antigenHuman antibodiesGranulocytic ehrlichiosisIndirect immunofluorescenceHGE agentAnimal-derived antigensDetection of antibodiesTick-derived isolatesPromyelocytic leukemia cell lineAntigen presentationHuman promyelocytic leukemia cell lineHealthy individualsLeukemia cell linesHGE patientsSera reactiveEhrlichia phagocytophilaHigh titersAntigenImmunofluorescence methodE. equiEhrlichia equiRoutine testingAntibodiesSpecific antibodies
1995
Use of Bartonella Antigens for Serologic Diagnosis of Cat-scratch Disease at a National Referral Center
Dalton M, Robinson L, Cooper J, Regnery R, Olson J, Childs J. Use of Bartonella Antigens for Serologic Diagnosis of Cat-scratch Disease at a National Referral Center. JAMA Internal Medicine 1995, 155: 1670-1676. PMID: 7542443, DOI: 10.1001/archinte.1995.00430150164017.Peer-Reviewed Original ResearchConceptsCat-scratch diseaseIndirect fluorescent antibodySerum samplesB henselaeFluorescent antibodyNational referral centerStrict clinical definitionsUse of antigensReferral centerCat contactRegional adenopathyCat scratchClinical historyFourfold riseB quintanaBasis of causeClinical definitionClinical informationDiagnostic criteriaPatientsSerologic diagnosisDisease controlBartonella henselaeCat ageDiseaseAnalysis of Borrelia burgdorferi Sequentially Isolated from Peromyscus leucopus Captured at a Lyme Disease Enzootic Site
Hofmeister E, Childs J. Analysis of Borrelia burgdorferi Sequentially Isolated from Peromyscus leucopus Captured at a Lyme Disease Enzootic Site. The Journal Of Infectious Diseases 1995, 172: 462-469. PMID: 7622890, DOI: 10.1093/infdis/172.2.462.Peer-Reviewed Original ResearchPrevalence of antibodies to Rochalimaea species (cat-scratch disease agent) in cats
Childs J, Olson J, Wolf A, Cohen N, Fakile Y, Rooney J, Bacellar F, Regnery R. Prevalence of antibodies to Rochalimaea species (cat-scratch disease agent) in cats. Veterinary Record 1995, 136: 519. PMID: 7544936, DOI: 10.1136/vr.136.20.519.Peer-Reviewed Original Research