Mortality is one thing, but many COVID patients require extensive care. We will soon see the impact of the current higher number of cases on hopitalization rates. Also, I see no reason to be complacent and to consider flu deaths as being "normal". If simple health measures such as mask-wearing during flu season can save lives, I don't see why they should not become commonplace.
I must confess, rarely though it happens, I'm inclined to disagree with you here.
Masking through flu season isn't merely intrusive and unlikely to garner broad public acceptance, its also unlikely on its own to alter mortality materially.
Just as with Covid the majority of death due to influenza occurs among the elderly and immune-compromised.
We could adopt measures tomorrow that would suppress these, at least for the residents of long-term care.
The measures would mirror what has been done or suggested by experts for Covid.
Full-time staff who work at only one facility, ideally only on one floor so not moving disease from facility or unit to another.
All private rooms (one resident/patient) per room.
Restrictions on visitors.
The reasons these are not done today is cost, cost, and the secondary consequences of separating residents from their loved ones/family, and the misery that inflicts.
Those measures, however, would surely cut influenza deaths overall by more than 25%, and more than 50% inside long-term care.
Likewise, for older residents living at home, we could take actions to reduce exposure risks, though enforcement would be a much greater challenge. But broad mask wearing would be immaterial in most cases.
It would be managing interactions with family, PSWs and delivery people, and mandatory vaccination.
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Worth saying here, I'm in favour of the measures I noted above for long-term care (private rooms, and full-time, single-facility staff).
Those are costly, but I think worthwhile and with no adverse secondary affects other than cost likely.
But I don't see people accepting precautionary making on a universal basis, for 5 months out of of every year.
Nor do I see sufficient benefit in terms of reduced disease transmission among those mostly likely to be at risk.