KRON: Can you get too much COVID vaccine?
KRON: Can you get too much COVID vaccine?. “Although COVID-19 vaccines are highly effective at minimizing severe symptoms caused by the virus, vaccine effectiveness decreases over time. That’s why boosters are being recommended. With a study out of Israel now touting the potential benefits of a 4th shot, some may be wondering whether the boosters are permanent. Others question whether there is a risk of harm from too much vaccine.”