It's quite clear that the person who wrote the comment I'm replying to believes that "truly protective" means 100% protection, and that if the vaccine was "trul

It's quite clear that the person who wrote the comment I'm replying to believes that "truly protective" means 100% protection, and that if the vaccine was "truly protective" you no longer need to worry about getting COVID. This is a very dangerous idea and why there is so much confusion and misinformation. By insisting that 91% is "truly effective" in conversations like this you are not helping.