MarkSimondsRiddleMDDrPH, FISTM

Preventive Medicine • Verdi, NV

Public Health & General Preventive Medicine

Director, Vaccines Clinical Research & Development Pfizer, Inc.

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Office
PO Box 1430
Verdi, NV 89439

Education & Training

National Capital Consortium (USUHS)Residency, Public Health and General Preventive Medicine, 2000 - 2002
Tulane University School of MedicineClass of 1997

Certifications & Licensure

CA State Medical License 1998 - 2026
NV State Medical License 2019 - 2025
LA State Medical License 2000 - 2020
American Board of Preventive Medicine Public Health & General Preventive Medicine

Clinical Trials

Shigella Flexneri 2a Invaplex 50 Vaccine Dose Finding and Assessment of Protection Start of enrollment: 2007 May 01
Completed
Phase 1, Phase 2
Safety Study of Recombinant Vaccine to Prevent ETEC Diarrhea Start of enrollment: 2011 Jul 01
Completed
Phase 1
Trial Evaluating Ambulatory Treatment of Travelers' Diarrhea Start of enrollment: 2012 Sep 01
Terminated
Not Applicable
Safety Study of a Capsule-Conjugate Vaccine to Prevent Campylobacter-Caused Diarrhea Start of enrollment: 2014 Apr 21
Completed
Phase 1
Efficacy of Rifaximin in Preventing Campylobacteriosis Start of enrollment: 2014 Oct 01
Completed
Phase 2, Phase 3
Safety and Tolerability of a Bioconjugate Vaccine Against Shigella Flexneri 2a Start of enrollment: 2015 Feb 01
Completed
Phase 1
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Publications & Presentations

PubMed

Background incidence rates of health outcomes in populations at risk for Lyme disease using US administrative claims data.
Jill Dreyfus, Swapna Munnangi, Camilla Bengtsson, Bárbara Correia, Rejane Figueiredo
Vaccine. 2024-02-15
Efficacy Evaluation of an Intradermally Delivered EnterotoxigenicCF Antigen I Fimbrial Tip Adhesin Vaccine Coadministered with Heat-Labile Enterotoxin with LT(R192G) a...
Ramiro L Gutiérrez, Chad K Porter, Clayton Harro, Kawsar Talaat, Mark S Riddle
Microorganisms. 2024-01-29
2 citations
Gut microbiome and antibiotic resistance effects during travelers' diarrhea treatment and prevention.
Kevin S Blake, Drew J Schwartz, Srinand Paruthiyil, Bin Wang, Jie Ning
Mbio. 2024-01-16

Journal Articles

Enterotoxigenic E. Coli Virulence Gene Regulation in Human Infections
Kawsar R Talaat, Mark S Riddle, Stephen J Savarino, Proceedings of the National Academy of Sciences
Rotavirus Vaccination and the Global Burden of Rotavirus Diarrhea Among Children Younger Than 5 Years
Beth D Kirkpatrick, Umesh D Parashar, Mark S Riddle, Judd L Walson, JAMA

Press Mentions

Doctor: Growing Evidence COVID Vaccines Reduce Transmission, InfectionsApril 12th, 2021
UNR School of Medicine Doctor Breaks down How COVID-19 Vaccines WorkApril 9th, 2021
Experts: Avoid Brand “Shopping” for COVID-19 VaccineMarch 13th, 2021
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