Neima Briggs, MD, PhD
InstructorCards
About
Research
Publications
2025
Sequential class switching generates antigen-specific gut IgA from IgG1 B cells
Siniscalco E, Meng H, Gabernet G, Pacheco G, Saghaei S, Ramirez S, Hills L, Faraji F, Chen S, Yin X, Dien C, Hoyt L, Liu E, Barrett A, Briggs N, Williams A, Shukla V, Crotty S, Wesemann D, Kleinstein S, Craft J, Eisenbarth S. Sequential class switching generates antigen-specific gut IgA from IgG1 B cells. Immunity 2025 PMID: 41253159, DOI: 10.1016/j.immuni.2025.10.022.Peer-Reviewed Original ResearchThis study investigates how gut-specific IgA antibodies are generated from IgG1 B cells through sequential class switching, highlighting a crucial mechanism for designing effective mucosal vaccines.A Honduran Prevalence Study on Soil-Transmitted Helminths Highlights Serological Antibodies to Tm-WAP49 as a Diagnostic Marker for Exposure to Human Trichuriasis.
Briggs N, Versteeg L, Mejia R, Pollet J, Villar M, Zhan B, Segal G, Novak S, Lenihan P, Musgrave P, Ellis V, Coello C, Sastry K, Craft J, Hotez P, Bottazzi M. A Honduran Prevalence Study on Soil-Transmitted Helminths Highlights Serological Antibodies to Tm-WAP49 as a Diagnostic Marker for Exposure to Human Trichuriasis. American Journal Of Tropical Medicine And Hygiene 2025, 112: 1017-1025. PMID: 39933187, PMCID: PMC12062693, DOI: 10.4269/ajtmh.24-0514.Peer-Reviewed Original ResearchSoil-Transmitted HelminthsReceiver-operating characteristic analysisSerological assaysFecal examinationDiagnostic toolIndirect ELISAGold standard testRoundworm infectionDiseases of humansRecombinant proteinsValidation cohortScreening cohortActive infectionInfections rankControl seraHuman trichuriasisDiagnostic markerRelationship to chronic diseasesClinical questionsWestern blottingDiagnostic potentialInfectionWhipwormCharacteristic analysisPrevalence studiesAltering the intracellular trafficking of Necator americanus GST-1 antigen yields novel hookworm mRNA vaccine candidates
De Oliveira A, Versteeg L, Briggs N, Adhikari R, Villar M, Redd J, Hotez P, Bottazzi M, Pollet J. Altering the intracellular trafficking of Necator americanus GST-1 antigen yields novel hookworm mRNA vaccine candidates. PLOS Neglected Tropical Diseases 2025, 19: e0012809. PMID: 39792959, PMCID: PMC11756802, DOI: 10.1371/journal.pntd.0012809.Peer-Reviewed Original ResearchConceptsAntigen-specific antibodiesMRNA vaccine candidateMRNA vaccinesVaccine candidatesNa-GST-1Plasma membrane-anchoredRobust CD8+ T-cell responsesCD8+ T cell responsesMemory T cell populationsTiters of antigen-specific antibodiesLevels of antigen-specific antibodiesT cell responsesT cell populationsRecombinant Na-GST-1In vivo efficacySubunit vaccine candidateInduce humoral responsesImmunogenicity findingsNeutralizing antibodiesClinical studiesDevelopment of multivalent vaccinesHumoral responseRNA vaccinesImmune responsePeptide presentation
2024
The amalgam of naive CD4+ T cell transcriptional states is reconfigured by helminth infection to dampen the amplitude of the immune response
Even Z, Meli A, Tyagi A, Vidyarthi A, Briggs N, de Kouchkovsky D, Kong Y, Wang Y, Waizman D, Rice T, De Kumar B, Wang X, Palm N, Craft J, Basu M, Ghosh S, Rothlin C. The amalgam of naive CD4+ T cell transcriptional states is reconfigured by helminth infection to dampen the amplitude of the immune response. Immunity 2024, 57: 1893-1907.e6. PMID: 39096910, PMCID: PMC11421571, DOI: 10.1016/j.immuni.2024.07.006.Peer-Reviewed Original ResearchT cell receptorImmune responseNaive CD4+ T cellsCD4+ T cellsIFN-IHelminth infectionsNippostrongylus brasiliensis infectionDecreased immune responseType I interferonNaive TT cellsMemory-likeUnrelated antigensTranscriptional changesExtracellular matrixSPF miceCell receptorsI interferonGerm-freeResponse to certain environmental cuesInfectionMiceFunctional changesCell transcriptional statesTranscriptional heterogeneity
2023
Response to comment on “Dosing implications for liposomal amphotericin B in pregnancy”
O'Grady N, Davis M, McManus D, Topal J, Azar M, Briggs N. Response to comment on “Dosing implications for liposomal amphotericin B in pregnancy”. Pharmacotherapy The Journal Of Human Pharmacology And Drug Therapy 2023, 43: 992-992. PMID: 37701938, DOI: 10.1002/phar.2864.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsDosing implications for liposomal amphotericin B in pregnancy
O'Grady N, McManus D, Briggs N, Azar M, Topal J, Davis M. Dosing implications for liposomal amphotericin B in pregnancy. Pharmacotherapy The Journal Of Human Pharmacology And Drug Therapy 2023, 43: 452-462. PMID: 36862037, DOI: 10.1002/phar.2784.Peer-Reviewed Original ResearchConceptsIdeal body weightLiposomal amphotericin BMucocutaneous leishmaniasisBody weightAmphotericin BInfectious Diseases SocietyTotal body weightPregnant patientsDiseases SocietyAmerica guidelinesPreferred agentPregnancyParasitic infectionsOpportunistic fungalAdverse effectsPatientsTreatmentLeishmaniasisLambsDaysUse of lambsGuidelinesRegimensWeightFetuses
2022
Mucocutaneous Leishmaniasis in a Pregnant Immigrant
Briggs N, Wei BM, Ahuja C, Baker C, Palacios C, Lee E, O’Grady N, Singanamala S, Singh K, Bandaranayake TD, Cohen JM, Damsky W, Davis MW, Mejia R, Nelson CA, Topal JE, Azar MM. Mucocutaneous Leishmaniasis in a Pregnant Immigrant. Open Forum Infectious Diseases 2022, 9: ofac360. PMID: 35928503, PMCID: PMC9345408, DOI: 10.1093/ofid/ofac360.Peer-Reviewed Original ResearchEfficacy and Safety of COVID-19 Convalescent Plasma in Hospitalized Patients
Ortigoza MB, Yoon H, Goldfeld KS, Troxel AB, Daily JP, Wu Y, Li Y, Wu D, Cobb GF, Baptiste G, O’Keeffe M, Corpuz MO, Ostrosky-Zeichner L, Amin A, Zacharioudakis IM, Jayaweera DT, Wu Y, Philley JV, Devine MS, Desruisseaux MS, Santin AD, Anjan S, Mathew R, Patel B, Nigo M, Upadhyay R, Kupferman T, Dentino AN, Nanchal R, Merlo CA, Hager DN, Chandran K, Lai JR, Rivera J, Bikash CR, Lasso G, Hilbert TP, Paroder M, Asencio AA, Liu M, Petkova E, Bragat A, Shaker R, McPherson DD, Sacco RL, Keller MJ, Grudzen CR, Hochman JS, Pirofski LA, Rahman F, Ajayi A, Rodriguez S, Ledesma A, Keeling D, Rappoport N, Ebel S, Kim J, Chang M, Chan K, Patel P, Martocci A, Dave S, Darwish Y, Taveras M, Shoyelu V, Xin P, Iturrate E, Moldolsky L, Raimondo B, Mendez S, Hughes P, Sterling S, Lord A, Yaghi S, Veloso K, Sheikh M, Visconti-Ferrara E, Fleming A, Youn H, Jane Fran B, Medina R, McKell R, Khan S, Hamilton T, Sanchez C, Patel N, Cleare L, Vergnolle O, Nakouzi A, Quevedo G, Bortz R, Wirchnianski A, Florez C, Babb R, Ayala J, Tsagaris K, James A, Eke I, Obeidallah A, Sandu O, Sohval S, Serrano-Rahman L, Uehlinger J, Bartash R, Al-Abduladheem A, Gendlina I, Sheridan C, Bortnick A, Eichler J, Kaufman R, Yukelis S, Pennock M, Goggin M, Shen C, Annam J, Khokhar A, Barboto D, Lally B, Lee A, Lee M, Yang X, Allen S, Malaviya A, Moussa O, Park R, Sample R, Bae A, Benoni G, Boerger L, Baker L, Luther M, Ameti L, Briggs N, Golden M, Gormally M, Huang G, Johnson R, Morrison A, Montagna-Hill M, Rivera B, Cortezzo G, Debski K, Nicoletti, DeBenedictis K, Davis R, Marshall C, Duque Cuartas M, Beauchamps L, Bertran-Lopez J, Gonzales Zamora J, Delgado-Lelievre M, Dominguez S, Lee C, Kusack H, Karakeshishyan V, Hajaz A, Deniz D, Garcia G, Dae K, Blenet P, Jaffe D, Olson L, Sabogal D, Blust O, Del Prete Perez V, Bornia C, Rodriguez-Perez V, Calderon V, Ramdev R, Jolly A, Guzman I, Guerra R, Brito S, Hobbs R, Denham R, Dick J, Hernandez M, Nielsen L, Anjum S, Mader S, Stutz T, Mammadova M, Nichols P, Khan T, Boktour M, Castaneda B, Benitez B, Hinojosa E, Guerra B, Ortiz A, Hebbeler-Clark R, McShane P, Hibbard R, Hawkins B, Dohanich E, Wadle C, Greenlee K, Brooks J, Herrick C, Gode A, Bergl P, Hu K, Patel J, Srinivasan S, Graf J, Klis C, Reimer K, Carpenter E, Naczek C, Petersen R, Dex R, Drossart J, Zelten J, Brummitt C, Liang M, Yanny L, Dennison G, Runningen P, Brzezinski B, Fiebig S, Naczek C, Kasdorf M, Parameswaran L, Corcoran A, Rohatgi A, Wronska M, Wu X, Srinivasan R, Deng F, Filardo T, Pendse J, Blaser S, Whyte O, Gallagher J, Thomas O, Ramos D, Sturm-Reganato C, Fong C, Daus I, Payoen A, Chiofolo J, Friedman M, Wu D, Jacobson J, Schneider J, Sarwar U, Wang H, Huebinger R, Dronavalli G, Bai Y, Grimes C, Eldin K, Umana V, Martin J, Heath T, Bello F, Ransford D, Laurent-Rolle M, Shenoi S, Akide-Ndunge O, Thapa B, Peterson J, Knauf K, Patel S, Cheney L, Tormey C, Hendrickson J. Efficacy and Safety of COVID-19 Convalescent Plasma in Hospitalized Patients. JAMA Internal Medicine 2022, 182: 115-126. PMID: 34901997, PMCID: PMC8669605, DOI: 10.1001/jamainternmed.2021.6850.Peer-Reviewed Original ResearchConceptsCCP recipientsPlacebo recipientsSecondary outcomesSymptom durationHospitalized patientsPrimary outcomeDay 28COVID-19SARS-CoV-2 serostatusSARS-CoV-2 titersWorld Health Organization (WHO) ordinal scaleCOVID-19 convalescent plasmaConvalescent plasma usePlacebo-controlled trialLess daysExploratory subgroup analysisNon-Hispanic blacksSARS-CoV-2CCP efficacyConcomitant medicationsAdverse eventsClinical improvementSymptom onsetConvalescent plasmaMedian age
2021
Early but not late convalescent plasma is associated with better survival in moderate-to-severe COVID-19
Briggs N, Gormally MV, Li F, Browning SL, Treggiari MM, Morrison A, Laurent-Rolle M, Deng Y, Hendrickson JE, Tormey CA, Desruisseaux MS. Early but not late convalescent plasma is associated with better survival in moderate-to-severe COVID-19. PLOS ONE 2021, 16: e0254453. PMID: 34320004, PMCID: PMC8318280, DOI: 10.1371/journal.pone.0254453.Peer-Reviewed Original ResearchConceptsCOVID-19 convalescent plasmaSevere COVID-19Convalescent plasmaPlasma recipientsHospital mortalityUnexposed cohortCCP administrationSevere COVID-19 infectionPropensity score-matched analysisCOVID-19Limited therapeutic optionsCOVID-19 infectionCoronavirus disease 2019CCP recipientsHospital stayPrimary endpointSecondary endpointsHospital daysHospital dischargeEarly administrationComplete followMechanical ventilationTherapeutic optionsClinical differencesSevere disease
2020
Advances in rapid diagnostics for bloodstream infections
Briggs N, Campbell S, Gupta S. Advances in rapid diagnostics for bloodstream infections. Diagnostic Microbiology And Infectious Disease 2020, 99: 115219. PMID: 33059201, DOI: 10.1016/j.diagmicrobio.2020.115219.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus Statements
Academic Achievements & Community Involvement
Clinical Care
Overview
Neima Briggs, MD, PhD, is an internist and infectious diseases specialist with advanced training and clinical experience in tropical and travel medicine. He is a founding member of the Yale Travel and Tropical Medicine Clinic at the Yale Center for Infectious Diseases, where he provides comprehensive clinical services to both individuals seeking pre-travel advice and medical services, as well as the management of a broad spectrum of infectious illnesses.
Dr. Briggs serves as a clinical instructor at Yale School of Medicine and conducts active research studying host immune responses to parasitic infections, aiming to elucidate mechanisms of disease progression and develop novel diagnostics, therapeutics, and vaccines. He maintains ongoing research collaborations in Brazil and Honduras.
Dr. Briggs earned his medical and doctorate degrees from the University of Texas Medical School at Houston. He completed residency training in internal medicine, a fellowship in infectious diseases, and postdoctoral research fellowship in immunobiology at Yale School of Medicine.
He also holds a diploma in tropical medicine from the National School of Tropical Medicine at Baylor College of Medicine and a Certificate of Knowledge in Clinical Tropical Medicine and Travelers’ Health (CTropMed) from the American Society of Tropical Medicine and Hygiene (ASTMH).
His work has been recognized with numerous honors, including a Fulbright Scholarship to Spain, the Burroughs Wellcome Fund/ASTMH Postdoctoral Fellowship in Tropical Medicine to Brazil, the Robert E. Leet and Clara Guthrie Patterson Trust Mentored Research Award, and the ASTMH Benjamin H. Kean Travel Fellowship to Honduras.
Clinical Specialties
Infectious Diseases