Estimating Population Immunity and Impact of COVID-19 Vaccination in Washington State and Oregon

• by Mia Moore, Larissa Anderson, Chloe Bracis, David A Swan, Ian Painter, Erik Everson, Holly Janes, Joshua T Schiffer, Laura Matrajt, Dobromir Dimitrov

• August 30, 2025

“Who’s on Backup?”—Exploring Internal Medicine Residency Backup Coverage Systems: Findings from a National Survey

• by Emily S. Wang, Joel C. Boggan, Emily Leasure, Daniel Kim, Lydia Redway, Erica N. Johnson, Patricia F. Kao, Steven J. Durning, Mark Rasnake

• May 18, 2026

COVID-19, Vaccines, and Retinal Vascular Disease

A global systematic review of 173 studies found differing associations between COVID-19 infection and vaccination and retinal vascular events, with retinal artery occlusion more common after infection and retinal vein occlusion more common after vaccination.

• by Nirojini Sivachandran, MD, PhD, FRCSC

• May 14, 2026

• 2 min

Recent COVID-19 Shot Linked to Less Spread

Protection against spread appeared strongest within 6 months of vaccination, while exposed vaccinated contacts showed no measurable reduction in infection risk.

• by Kerri Miller

• May 18, 2026

• 3 min