'Infection blocking immunisation' to #COVID19 lasts for longer than might have been anticipated at the beginning of the pandemic (~1-2 years on average). 'Symptom reducing immunity' likely for far longer (possibly decades).
1/ https://twitter.com/BallouxFrancois/status/1238837167142641664

Thus there's no point endlessly re-running the same alarmist headlines, leading to the same futile debate every time a new study comes out and adds next to nothing to our knowledge on the duration of #COVID19 immunisation time.
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Also, 'Infection blocking immunisation' is a priori expected to be roughly similar for a natural infection than for a vaccine. Vaccines tend to provide somewhat shorter lived immunity (especially recombinant ones), despite some exceptions to this pattern (e.g. HPV)
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As such, it would be helpful if everyone refrained form rehearsing the same futile arguments why #COVID19 shorter/longer #COVID19 immunisation time makes strategy X or Y impossible, or conversely the only one available.
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At the end of the day, a sufficient proportion of the population needs to be immunised, through vaccines or infection. #COVID19 cannot be eliminated globally but once immunity has built up, morbidity/mortality should fall in line with other respiratory viruses in circulation.
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Thus, whatever one's pet #COVID19 suppression / mitigation strategy, evidence that immunisation last for longer than expected is good news, whilst shorter than expected is bad news. That said, it happens that there hasn't been any good/bad news on that front for months.
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