I've been reading some interesting studies on viral load and how it's been steadily decreasing in positive tests as the pandemic has gone on. The amount of virus you have could be a predictor as to how sick you get (e.g. need to go to an ICU) or if you die. As the death rate per case seems to be dropping as well, and as I understand it is not 100% correlated with the younger people testing positive, some are thinking this lower viral load per positive case is a factor. Why is the viral load dropping? Could be the virus itself is changing (a virus doesn't want to kill too many people or it will cease to exist) or that masks and social distancing are doing enough to not stop the spread of positivity but they are doing enough to drop the viral load that people are exposed to. Also, is this dropping viral load a blip or a trend? Time will tell. https://www.cidrap.umn.edu/news-perspective/2020/09/falling-covid-19-viral-loads-may-explain-lower-rates-icu-use-deaths