>>really interesting paper - pointing out that immune system responses are not always black and white.

Very interesting that they hypothesize such an important T-cell immunity role; current assays for COVID are G- and M- because T-cell response is difficult and expensive to measure at this stage.

IMHO most first world nations would be very smart to measure excess mortality focused on influenza; there's a strong meme out there that larger numbers usually die of flu each year, some of whom now succumb to COVID and others miss out on flu in their locked down state only to succumb to their other pre-existing conditions. If this is true then communities can easily digest that sort of statistic and perhaps can be trusted to make sensible choices rather than dictums from on high.