Uh just so we don't argue the same thing this is the first mrna vaccine they are testing in humans, there have been extensive tests in vitro and animalsFalse. They tested it on humans in clinical trials which is why we are where we are now
What did you read? They all have side effects. There's no way to know long term mrna side effects because, again, this will be the first mrna vaccine and the pfizer clinical trial is not 10 years old. Agent orange was safe, too80,000 people across 2 trials with no adverse reactions.
The side effects of leading coronavirus vaccines seem to be what scientists were expecting. Here's what they are and why they happen.
“Take Tylenol and suck it up”: side effects show vaccine is working, physicians and researchers say