More Evidence COVID Shots Less Effective for People With Weak Immune Systems
WEDNESDAY, Nov. 3, 2021 (HealthDay News) — Transplant patients and certain other folks may need four shots of COVID-19 vaccine for optimal protection, new research suggests. People with weakened immune systems who’ve received both doses of two-dose COVID-19 vaccines aren’t adequately protected against severe illness. They should be given aContinue Reading