Ryan Forster
@ryanforster
I build infectious disease models and stress-test AI systems for scientific reliability.
What I'm looking for
At Johns Hopkins Bloomberg School of Public Health, I develop Bayesian infectious disease transmission models that quantify uncertainty and project how treatment access and public-health programs affect HIV and syphilis incidence.
My work includes city-specific models of Doxy-PEP across four U.S. cities, analysis of large administrative claims datasets, and policy modeling published in Annals of Internal Medicine and Clinical Infectious Diseases.
Previously at Albert Einstein College of Medicine, I used genomic, clinical, and population-level data to study SARS-CoV-2, Gardnerella, tuberculosis, and herpesviruses. I analyzed more than 100 SARS-CoV-2 patient samples, supported genomic surveillance in New York City, built reproducible pathogen sequencing workflows, and prepared HSV vaccine material for a Phase 1 clinical trial.
Alongside my epidemiology research, I evaluate advanced AI systems for factual accuracy, scientific safety, and methodological reliability. I've designed adversarial tests, validated bioinformatics and statistical analyses in R, identified recurring failure modes, and documented reliability risks across models including GPT-4, Claude, and Llama.
Experience
Work history, roles, and key accomplishments
Develop Bayesian infectious disease models to project how treatment access and public health policies affect HIV and syphilis. Quantify uncertainty and population impacts, analyze claims data for treatment uptake, model Doxy-PEP effects across four U.S. cities, and communicate findings through publications and presentations.
Designed adversarial prompts and validated model-generated analyses using reproducible R workflows as ground truth comparisons.
Evaluated advanced large language models for factual accuracy, logical coherence, safety compliance, and methodological reliability. Worked with Meta.AI on curating live chat data for usability in RLHF training.
Conducted computational microbiology and genomic epidemiology using genomic, clinical, and public-health data. Built reproducible workflows for phylogenetics, microbial community analysis, and metabolic modeling. Applied machine learning, regression, Bayesian, time-series, and transmission models to study microbial function, SARS-CoV-2, surveillance, and patient outcomes.
Conducted translational TB, mycobacteriophage, and HSV research. Isolated and characterized phages, studied infection mechanisms, and trained junior researchers. Supported HSV vaccine preparation and safety testing for a Phase 1 trial with X-VAX Technology, phage-based TB diagnostics, and nanopore sequencing/bioinformatics workflows.
Undergraduate Researcher
Mount Saint Mary College
Aug 2016 - May 2018 (1 year 9 months)
Isolated and characterized environmental mycobacteriophages using microbiological, molecular, and genomic methods. Performed bacterial culture, plaque assays, phage purification, DNA extraction, and genomic characterization while developing expertise in phage biology, host-virus interactions, biosafety, and pathogen identification.
Education
Degrees, certifications, and relevant coursework
Johns Hopkins Bloomberg School of Public Health
Postdoctoral Fellowship, Computational Epidemiology
Activities and societies: The Program Committee (PC) Poster Pick at CROI 2026 by Connie Celum on 'Projected Impact of Doxycycline PEP on Syphilis Incidence: Modeling Study in 4 US Cities'.
Postdoctoral Fellowship in Computational Epidemiology at Johns Hopkins Bloomberg School of Public Health.
Albert Einstein College of Medicine
Ph.D., Biomedicine
Mount Saint Mary College
Bachelor of Arts, Chemistry
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Website
rmc4ster.substack.comSalary expectations
Social media
Job categories
Skills
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