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if only based on claims, the vaccine has not been approved...
Just as the news of this epidemic is said to be just a 'fraud', and maybe as well as likely unilateral claims made by many drug companies, their main goal is only to increase the value of shares. I welcome this news but also remain skeptical.
Ohh come on, put away your tinfoil hat. Pfizer will be very shortly filing for an emergency approval for their vaccine at the FDA. These processes take time. They have to proof that their vaccine is both safe with no unwanted side effects and that it's efficient and does what it is intended for. Usually these admission procedures for new drugs may take almost a year but in this special case with an emergency use approval the whole process won't take that long for sure.