> They're not. They're not particularly effective for preventing flu in an individual. But at the group level, they have a clear and useful effect.
This is my understanding. It basically would have marginally reduced the cost of the flu coming through, right? But thats not the impression that I would get from any of the discussion here. Am I wrong?
This is my understanding. It basically would have marginally reduced the cost of the flu coming through, right? But thats not the impression that I would get from any of the discussion here. Am I wrong?