@freemo @luckytran Let's put aside the appeal to authority/reverse/etc stuff please. The discussion at hand is whether it is valid as a metric for getting an overall view of current trends in new infections. Yes it is less accurate than proper tracking. I fully agree. (Though even proper tracking has its own hurdles.) There are things where this is an issue, but an overall view as we are doing here looks roughly the same whether viral loads or tracking.