That’s why it bothers me that some venues are requiring you to be “boosted” to go see a show. That makes no sense to me.
Among the vaccinated, boosting reduces hospitalization 4-6 times as much as not being boosted.
When you compare that to numbers like the difference between vaccinated and unvaccinated which can be a forty- to sixty-fold difference, then 4-6 doesn't sound like a lot.
But, small numbers can become big numbers when you multiply them by very big numbers.
So, think of Broadway. If a venue can hold 2,000 people, and without boosters, 50 people show up with breakthrouh infections. Then with boosters, only 8-12 people show up infected.
In a year, close to 15 million people see a Broadway show. So, it adds up. Then include a billion visits from the general population to various stores, jobs, schools, and entertainment venues.
And not only that, but we know that the vaccine's effectiveness wanes over time. If you don't require boosters, then eventually, those showing up vaccinated but not boosted will have more and more people within that group with breakthrough infections. The difference between boosted and not-boosted will only grow. So, at what point do you say that they have to start being boosted clientele? When the difference between the two groups is a 10 fold difference? 20-fold?
It's just easier to require everyone to be boosted now, then to have to suddenly add that requirement later after it seems that there is a big enough difference, which will just become another thing to argue over.