Welcome to Your Local Epidemiologist (YLE) newsletter! 

Who am I?

My name is Dr. Katelyn Jetelina. I have a Masters in Public Health and PhD in Epidemiology and Biostatistics. I am an epidemiologist, data scientist, wife, and mom to two little girls.

During the day, I wear many hats, including scientific consultant to a number of organizations, including CDC.

At night, I write this newsletter. My main goal is to “translate” the ever-evolving public health science so that people will be well-equipped to make evidence-based decisions. This newsletter started in March 2020 to update students, faculty, and staff on the developments of the pandemic. In 4 years , it’s grown to an international audience.

What is this?

This newsletter aims to provide a direct line of “translated” public health science to the local, national, and international community. Over the past 4 years, I’ve covered COVID-19 topics ranging from variants to vaccines and booster rollouts, to exciting new developments like antivirals and context to some of our greatest unanswered questions.

YLE has also started to dip into other public health topics, like gun violence, reproductive health, other infectious diseases, and public health events (thanks to the feedback from the YLE audience).

I hope that, together, YLE provides breadth and depth into the pandemic, epidemiology, and public health overall. Public health touches all of our lives, even outside of a pandemic.

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The newsletter is free, but many continue to support it financially. Support ensures:

  • Science (i.e. YLE content) remains freely accessible and available to all.

  • YLE remains impermeable to external pressures.

  • YLE remains sustainable by growing an incredible internal team.

  • YLE has a space to think bigger and better about systematically improving scientific communication in public health.

YLE is a fiscally sponsored project of Social Good Fund, a California nonprofit corporation and registered 501(c)(3) organization, Tax ID (EIN) 46-1323531. To donate, please go here.

We also have a Spanish version here.

Glad to have you here!

Thank you for supporting the scientific communication of evidence-based information. It’s needed now more than ever.

Love, Katelyn (YLE)

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Providing a direct line of public health science to you


An epidemiologist trying to make sense of this world
Infectious disease epidemiologist
Emergency Medicine physician at Yale and creator of the medical blog You Can Know Things.