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By two New Zealand researchers.
https://theconversation.com/no-catching-omicron-is-not-inevitable-heres-why-we-should-all-still-avoid-the-virus-178276
You can catch COVID more than once, and you can get serious side-effects even if you case is "mild". A very large percentage of the cases in my office in the last month (almost certainly Omicron, but not verifiable because of lack of lab capacity to check for the exact strain) have been of people who survived Delta last year. All were "mild" i.e. ranging from a mild sniffled to several days of feeling like death. "Mild" for COVID just means "doesn't need oxygen supplementation". Several of them have had discernible reductions in fitness and visible lung damage (in X-rays) since last year.
And there are still plenty of immunologically compromised people around, for whom catching even a "mild" case can still be extremely dangerous. Wearing a mask reduces their risk, and one's own, by reducing the speed of spread, and probably, reducing viral load per exposure.
https://theconversation.com/no-catching-omicron-is-not-inevitable-heres-why-we-should-all-still-avoid-the-virus-178276
You can catch COVID more than once, and you can get serious side-effects even if you case is "mild". A very large percentage of the cases in my office in the last month (almost certainly Omicron, but not verifiable because of lack of lab capacity to check for the exact strain) have been of people who survived Delta last year. All were "mild" i.e. ranging from a mild sniffled to several days of feeling like death. "Mild" for COVID just means "doesn't need oxygen supplementation". Several of them have had discernible reductions in fitness and visible lung damage (in X-rays) since last year.
And there are still plenty of immunologically compromised people around, for whom catching even a "mild" case can still be extremely dangerous. Wearing a mask reduces their risk, and one's own, by reducing the speed of spread, and probably, reducing viral load per exposure.
