Vaccine developments and policy shifts continue to dominate headlines, with Western states coordinating on vaccine guidance, while questions about Covid vaccine efficacy persist, and FDA officials make controversial decisions on shot access.

• Snubbing RFK Jr., States Announce Plans to Coordinate on Vaccines — The New York Times Science -
• Trump Wants Proof That Covid Vaccines Work. It’s Easy to Find. — The New York Times Science -
• F.D.A. Official Overruled Scientists on Wide Access to Covid Shots — The New York Times Science -

• Snubbing Kennedy, States Announce Plans to Coordinate on Vaccines — The New York Times Science -

In ecological news, a new study reveals the significant benefits of migratory bison in reawakening the Yellowstone landscape.

• In Yellowstone, Migratory Bison Reawaken a Landscape — The New York Times Science -