 And it's due to such vaccination that there was a drop of 47% in polio cases last year. But this year, vaccination has been lagging. There are 108 million persons under 40, and of these, only 45 million have had as much as one shot of the vaccine. And please remember that while the first and second shots are helpful, the third shot is necessary for maximum protection. There's plenty of vaccine and the doctors are anxious to cooperate. Remember,