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Your Local Epidemiologist in California

Katelyn Jetelina, Megan Maisano, MS, RDN, Matt Willis, Hannah Totte, MPH, Christina Lin
Thousands of paid subscribers

Translating the ever-changing science of public health for Californians so you can take action for your community’s health

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PricingFreemiumPublishesWeekly
Issues60Foundeda year agoLast Issue2 days ago
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Artwork for Your Local Epidemiologist in California

Latest Issues

Covid-19 and West Nile surge, and California is protecting vaccine access

Covid-19 hospitalizations are climbing ahead of a murky vaccine rollout, West Nile virus is posting its worst numbers in 20 years, and California is holding the line on vaccine access while the White House backslides even further. We’ll sta...

2 days ago
64
4

One Year In

YLE California is turning 1! Man that went fast. When I first hit “publish” on on August 14, 2025, I had no idea what to expect. I felt sure about getting the science right, but wasn’t sure anyone would be listening and engaging on the othe...

8 days ago
101
25

Your summer picnic bag

This edition is a guest post from our appointed expert on summer fun to answer some pressing questions from you, our California community.


This spring, we launched The Pulse, a weekly survey sent to people across the state to hear w...

9 days ago
66

West Nile Virus, Covid-19, Cyclospora, and hot days ahead in California

I’m seeing four emerging public health threats in California this week— two viruses, a parasite, and our weather. We’ll start with a virus.


West Nile virus update

Last week, I described why I think we’re in for a rough West Ni...

16 days ago
104
6

West Nile Virus is moving fast, the Covid-19 summer wave is real, and trust-building

Bracing for West Nile Virus

We’re coming into West Nile Virus season again, and I’m seeing signs that this could be a harsh year. Here’s why, and how you can protect yourself.

A quick refresher. West Nile virus (WNV) is California’s...

23 days ago
107
6

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Authors

The writers behind this newsletter.

  • Katelyn Jetelina

    An epidemiologist trying to make sense of this world

  • Megan Maisano, MS, RDN

    Registered Dietitian | Science Communication | Public Health Nutrition | Mom of 4 | Army Vet | Wellness Noise Cutter

  • Matt Willis

    Matt Willis is a physician, epidemiologist and former Public Health Officer for Marin County, California.

  • Hannah Totte, MPH

    Epidemiology MPH. NorCal / NYC / SoCal. Lover of surf, stats, equity, plants. Might challenge you to Scrabble.

  • Christina Lin

    Infectious diseases physician and microbiologist with a passion for public health.

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