All they need to do is lower the PCR threshold. From what I have researched they are using 40 as the current threshold which most have argued against for months as it makes the test way too sensitive. It causes positive cases even with viral fragments which basically means as the virus spreads more will test positive even though they got over it months ago or never even knew they had had it. The consensus that I have seen is that it should be around 30. The New York Times did an article on this a while back and it showed that the amount of positive cases in the Boston area would decrease by 90% by doing this. So, imagine a 90% decrease in cases just by moving the threshold to something more reasonable. That on top of the fact that much of the population will have immunity in it by summertime anyway and I could easily see this mostly over by summer. Of course they will say it’s the vaccine that did it.