It depends on what they consider safe. Besides John Hopkins didn't develop these vaccines. They are only claiming they are safe. These Vaccines are a "One size fits all" they may not be safe for everyone.
Originally Posted by Levianon17
As stated in the article:
"Lisa Maragakis, M.D., M.P.H., senior director of infection prevention, and Gabor Kelen, M.D., director of the Johns Hopkins Office of Critical Event Preparedness and Response, answer questions about the safety of the COVID-19 vaccines."
These are people with a great deal of education in the area of viruses such as Covid. I have no reason to doubt what they say. I would trust such opinions more than opinions direct from the vaccine manufacturers.
I continue to be a participant in the Pfizer study. Every week I fill out a short diary as to whether or not I have experienced any Covid symptoms. It was through such participation that the need for a booster was validated.