habubauza
Again, scrutinizing the experience and qualifications of the quoted doctor should help with the decision. A cardiologist, as useful as he might be in his field, is neither a virologist nor a vaccine developer, in fact in his normal job he never has to deal with vaccines at all, there is nothing to vaccinate for a cardiologist.
Just for reference, the vaccines approved in the USA have also been approved in the EU. Unlike the USA they do not have an emergency approval, they have the normal full approval same as any other vaccine has, which requires the full and complete set of trials to be done. The new thing this time around was simply the amount of money available for development (throwing a few billions at that problem is cheap if you consider the trillions of economical damage) and the willingness to participate in the very largescale studies done.
As said above by others: we live in a post-information society. So the ability to assess the veracity of news sources is absolutely critical, as is the ability to get information from different sources, and most crucially, outside of ones own bubble. Of course it gets a bit easier if you have access to scientific journals and the ability to read studies and judge their thoroughness and how well they are peer reviewed.