# Katelyn Jetelina

> Dr. Katelyn Jetelina is an epidemiologist, data scientist, and one of America's most influential science communicators. She founded Your Local Epidemiologist (YLE) in March 2020 as a few sentences to update her UT Health students about COVID-19 - and somehow that turned into a 365,000-subscriber newsletter reaching people in 133 countries with over 500 million total views. Named a TIME100 Most Influential Person in Health, she translates complex public health science into actionable insights twice a week, covering everything from vaccines and bird flu to gun violence and federal health policy. She holds a PhD in Epidemiology and Biostatistics, consults with the CDC, and serves as an adjunct professor at Yale School of Public Health - all while raising two daughters and having visited 50+ countries.

- **Role:** CEO of 0.05 Findings / Founder of Your Local Epidemiologist
- **Organizations:** Your Local Epidemiologist (YLE), 0.05 Findings, Yale School of Public Health, Centers for Disease Control and Prevention (CDC, consultant), University of Texas Health Science Center, Resolve to Save Lives
- **Nationality:** American
- **Education:** PhD in Epidemiology and Biostatistics, University of Texas Health Science Center at Houston, Master of Public Health (MPH), University of Texas Health Science Center at Houston, Honorary Doctorate, SUNY
- **Known for:** Named TIME100 Most Influential Person in Health (2024), Your Local Epidemiologist newsletter: 365,000+ subscribers in 133 countries, Over 500 million total content views globally

## Career timeline

- **2010s** — Completed MPH and PhD in Epidemiology and Biostatistics at UT Health Science Center
- **2015-2018** — Worked for the World Health Organization in Geneva, Switzerland
- **2017-2019** — Conducted public health research in townships in South Africa
- **2018-2020** — Tenure-track faculty and research lab director at University of Texas Health Science Center
- **2020** — Founded Your Local Epidemiologist newsletter in March 2020 during the COVID-19 pandemic
- **2021** — YLE Facebook page hacked; pivoted and grew audience on Substack and other platforms
- **2022** — Consulted with CDC Director Dr. Rochelle Walensky on science translation
- **2023** — Appointed Senior Advisor to the White House and CDC
- **2024** — Named TIME100 Most Influential Person in Health; newsletter reaches 310,000+ subscribers
- **2024** — Appointed Adjunct Professor at Yale School of Public Health
- **2025** — Delivered UNC Gillings School of Global Public Health Commencement Address (May 10, 2025)
- **2025** — YLE newsletter reaches 365,000+ subscribers in 133 countries; 500M+ total views

## Achievements

- Named TIME100 Most Influential Person in Health (2024)
- Your Local Epidemiologist newsletter: 365,000+ subscribers in 133 countries
- Over 500 million total content views globally
- Honorary Doctorate from SUNY
- Senior Advisor to the White House and CDC
- 2025 Commencement Speaker at UNC Gillings School of Global Public Health
- Featured in CNBC, CNN, PBS, The New York Times, The Washington Post, and The Wall Street Journal
- Consulted with CDC Director Rochelle Walensky on science communication
- Founded Evidence Collective and Project Stethoscope programs through 0.05 Findings
- Co-founded Healthier Together initiative

## Latest updates

- **2025-05** — Delivered Commencement Address at UNC Gillings School of Global Public Health
- **2025-04** — YLE newsletter surpasses 365,000 subscribers across 133 countries
- **2024-11** — Appointed Adjunct Professor at Yale School of Public Health
- **2024-05** — Named TIME100 Most Influential Person in Health

## Links

- Website: https://www.yourlocalepidemiologist.co/
- LinkedIn: https://www.linkedin.com/in/katelynkassarjian
- Twitter/X: https://twitter.com/dr_kkjetelina
- Facebook: https://www.facebook.com/profile.php?id=100053149454347

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Profile page: https://yespress.io/katelyn-jetelina
Published by YesPress — https://yespress.io
Last updated: 2026-04-22