akuperma >>Other statistics show that most infected people were wearing masks.
If most people wear masks, then most infected people would wear masks. Possibly from interaction with people not wearing mask.
To get an idea whether being careful works , look at plots of Rt transmission. Rt shows how many people one person infects. If Rt is less than 1, then pandemic is dying out. If it is higher than 1, it increases.
Rt was _4_ in NY state on March 1. This is what happens when nobody takes precautions. It fell to 1 on March 25, when shelter started, went down to 0.7 (significant decrease) until end of May when reopening started, and went back to 0.9-1.1 range until now. So, you can see the possible range is between 0.7 and 4.
Right now, Rt in NY State is at 0.99 (maybe even 0.9999999?!). So, you can see that Rt can be above (increasing pandemic) or below 1 (decreasing) just maybe on your actions below. This illustrates the Rambam that says that one should imagine himself as tipping the scales of the world.
in March-April