All the studies are showing this trend.
I have an idea for suggested testing location for antibodies. First the usual disclaimers “ Hindsight is 20/20” and “ you don’t know what you don’t know”.
In retrospect one of the best or worst things that was done was to close colleges and universities. If the virus was already in the student population we would not have known because chances are 99.99% of infected students would have been asymptomatic or mildly symptomatic. Due to relatively closed community the spread of the virus would have been high. Closing the universities sent these students home to possibly disseminate the virus.
I am curious as the number of people who remained in the university towns and cities who test positive for antibodies. Also the number of confirmed cases and mortality. This information could be valuable to guide where we can reopen or remained closed.