Outbreak Outlook - April 26
6 min read
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Caitlin Rivers
Caitlin Rivers, PhD, MPH is a writer and epidemiologist. She directs the Center for Outbreak Response Innovation at Johns Hopkins and translates complex science into practical guidance.
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Outbreak Outlook - April 19
Improvements seen in influenza, Covid-19 and RSV.
5 min read
Outbreak Outlook - April 12
Flu hangs on in the Northeast; RSV finally quiets; Covid-19 activity low.
5 min read
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Outbreak Outlook - April 5
Flu B still active in the Northeast; RSV activity high but declining.
6 min read
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Coming Soon: FOI Clinical
Outbreak alerts that matter
1 min read
Notes on the new Covid-19 vaccine rules
The Food and Drug Administration approved the 2025-2026 formulation of the annual Covid-19 booster today. As expected, the label limits approval to people over the age of 65
2 min read
More data, Aug 24
Note: I would normally also share wastewater concentration data, but it was not updated this week. Influenza-like illness Covid-19 RSV
1 min read
Baltimore's public health approach to reducing gun violence
While writing about gun violence recently, I was reminded of a prominent violence prevention program in Baltimore with public health roots. Safe Streets is based on a program developed by
1 min read
FAQ on Fall Vaccines
💡Looking for my 2025-2026 vaccine guide? Find it on Substack here. This page answers follow-up questions from readers. Can doctors still prescribe the Covid-19 vaccine "off-
2 min read