Philip Armstrong
Associate Clinical Professor of Epidemiology (Microbial Diseases)About
Research
Publications
2025
Host-feeding behavior of mosquitoes (Diptera: Culicidae) in North Dakota, 2003 to 2006
Anderson J, Bransfield A, Misencik M, Jones S, Main A, Armstrong P, Andreadis T, Molaei G. Host-feeding behavior of mosquitoes (Diptera: Culicidae) in North Dakota, 2003 to 2006. Journal Of Medical Entomology 2025, tjaf021. PMID: 39982739, DOI: 10.1093/jme/tjaf021.Peer-Reviewed Original ResearchMitochondrial cytochrome b geneWest Nile virusDiverse group of vertebratesSpecies of mosquitoesCytochrome b geneGroup of vertebratesBlood mealNorth DakotaFeeding behavior patternsB genePasserine birdsAmerican robinsIsolation of West Nile virusWestern equine encephalitis virusVertebrate speciesTransmission of arbovirusesSnowshoe hare virusBehavior of mosquitoesPCR assayCache Valley virusPermanent waterFeeding habitsTransmission of West Nile virusSeasonal shiftsVertebrate hosts
2024
Multiple bloodmeals enhance dissemination of arboviruses in three medically relevant mosquito genera
Ferdous Z, Dieme C, Sproch H, Kramer L, Ciota A, Brackney D, Armstrong P. Multiple bloodmeals enhance dissemination of arboviruses in three medically relevant mosquito genera. Parasites & Vectors 2024, 17: 432. PMID: 39427222, PMCID: PMC11490111, DOI: 10.1186/s13071-024-06531-y.Peer-Reviewed Original ResearchConceptsAedes aegyptiMidgut infection ratesMultiple bloodmealsVector competence of Aedes aegyptiVirus vectorsLaboratory vector competence studiesVector competence studiesMosquito generaFeeding regimenBiting midgesCulex quinquefasciatusPost-infectionOropouche virusWest Nile virusBloodmealVirus disseminationVector competenceEscape barrierFeeding behaviorDissemination of arbovirusesAedes albopictus mosquitoesAedes triseriatusAedesFemale mosquitoesNile virusHost-Feeding Behavior of Mosquitoes in the Florida Everglades
Anderson J, Molaei G, Fish D, Armstrong P, Khalil N, Brudner S, Misencik M, Bransfield A, Olson M, Andreadis T. Host-Feeding Behavior of Mosquitoes in the Florida Everglades. Vector-Borne And Zoonotic Diseases 2024, 24: 520-531. PMID: 38648543, DOI: 10.1089/vbz.2023.0072.Peer-Reviewed Original ResearchHispid cotton ratsWest Nile virusWading birdsAmerican alligatorMosquito speciesSusceptibility to WNVCulex nigripalpus</i>,Blood meals of mosquitoesFlorida EvergladesBlood mealMarsh rabbitWhite-tailed deerIndustrial sitesBlood-fed specimensEverglades virusSpecies of rodentsHost speciesBlood-fed mosquitoesAvian hostsTransmit West Nile virusBehavior of mosquitoesFrequent hostsPCR assayTensaw virusHost feeding behaviorInvestigating the dose-dependency of the midgut escape barrier using a mechanistic model of within-mosquito dengue virus population dynamics
Johnson R, Stopard I, Byrne H, Armstrong P, Brackney D, Lambert B. Investigating the dose-dependency of the midgut escape barrier using a mechanistic model of within-mosquito dengue virus population dynamics. PLOS Pathogens 2024, 20: e1011975. PMID: 38557892, PMCID: PMC11008821, DOI: 10.1371/journal.ppat.1011975.Peer-Reviewed Original ResearchConceptsBasal lamina layersInfection dynamicsYellow fever virusEpidemics of severe diseaseMidgut escape barrierDengue virusVirus population dynamicsAmount of virusEstablishment of infectionDose-dependentlyMosquito feeding behaviorDEN virusesExtrinsic incubation periodFever virusMidgut epitheliumBlood feedingFeeding eventsMidgutViral infection dynamicsZika virusAedes aegyptiCourse of infectionEscape barrierAedes albopictusIncubation periodField Isolation and Laboratory Vector-Host Studies of Brazoran Virus (Peribunyaviridae: Orthobunyavirus) from Florida.
Armstrong P, Anderson J, Sharma R, Misencik M, Bransfield A, Vossbrinck C, Brackney D. Field Isolation and Laboratory Vector-Host Studies of Brazoran Virus (Peribunyaviridae: Orthobunyavirus) from Florida. American Journal Of Tropical Medicine And Hygiene 2024, 110: 968-970. PMID: 38531101, PMCID: PMC11066360, DOI: 10.4269/ajtmh.23-0799.Peer-Reviewed Original ResearchConceptsCulex quinquefasciatusMultiple mouse tissuesVector competenceDisseminated infectionNucleotide identityTexas isolatesL segmentField isolatesS segmentFlorida strainBlood mealMidgut infectionDisease signsMouse tissuesLaboratory trialsCulex erraticusIntradermal inoculationAedes aegyptiQuinquefasciatusCulex mosquitoesCulexIsolatesSouthern FloridaSuckling miceVirus transmission
2005
Isolations of Potosi Virus from Mosquitoes (Diptera: Culicidae) Collected in Connecticut
Armstrong P, Andreadis T, Anderson J, Main A. Isolations of Potosi Virus from Mosquitoes (Diptera: Culicidae) Collected in Connecticut. Journal Of Medical Entomology 2005, 42: 875-881. PMID: 16363172, DOI: 10.1093/jmedent/42.5.875.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBase SequenceChlorocebus aethiopsCluster AnalysisConnecticutCulicidaeDemographyDNA PrimersEnzyme-Linked Immunosorbent AssayMolecular Sequence DataOrthobunyavirusPhylogenyReverse Transcriptase Polymerase Chain ReactionSequence Analysis, DNASpecies SpecificityVero CellsViral Envelope ProteinsConceptsPotosi virusTrivittatus virusNortheastern United StatesMosquito speciesReverse transcription-polymerase chain reactionIndigenous strainsEncoded amino acid sequenceAnopheles punctipennisStatewide surveillance programAedes vexansAedes albopictusAmino acid sequenceRestriction enzyme analysisEnzyme-linked immunosorbent assayCVVViral isolatesIsolation rateCross-neutralizationAcid sequenceMosquitoesViral isolation rateAedesJamestown CanyonMolecular assaysTranscription-polymerase chain reaction
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