Checking for carcinogens is pretty well not needed. Cancer causing products are usually with exposure over time, and this is a one-off shot. I got mine. I have not had the flu yet. And mercury is a cumulative thing.
My local Kroger is still pushing flu shots on seniors and, as a seasoned citizen, it’s absolutely disgusting given the recent homicide fake vaccines.
Thank God I saw the satanic evil in 2020...and NEVER took their clot shots!