I’ve already written out the numbers in multiple comments. 50,000-100,000 cases a year, 5,000-10,000 deaths a year. Not everyone gets pneumonia every year, not everyone is equally healthy/unhealthy or has other factors that can make it more likely, not everyone is the same age, etc. So you can’t just apply this to the entire country. What the exact number is is not critical to understanding that. For the same reason not everybody has to worry about being killed on their bike on the way to work. Because not everybody rides a bike to work. I don’t need to show you numbers for everything in the bike claim, it is true/obvious at face value. Unless we have reason to debate whether or not literally every person bikes to work. Do you see my point? Every American is not equally susceptible to contracting MRSA at any given time. I can’t give you the exact number, but I think we can agree the “eligible” population is not anywhere near the total population.

The number of cases and the number of deaths associated, as well pneumonia/MRSA infection/ while hospitalized, is well documented. You can find stuff from the NIH and beyond about this. It’s a very serious issue that hospitals have never been able to truly fix. A cursory search would show you this, I’m sure there are a dozen major articles you could find in no time.