@margo020, tymczasem w treści:

Furthermore, although protection from past infection wanes over time, the level of protection against re-infection, symptomatic disease, and severe disease appears to be at least as durable, if not more so, than that provided by two-dose vaccination with the mRNA vaccines for ancestral, alpha, delta, and omicron BA.1 variants

Badania dotycza reinfekcji wiec z automatu wyklucza osoby którym nie powiodło się przetrwanie pierwszej infekcji...

Dalej ciekawostka, nie jest negowany lockdown ani ograniczenia:

Autorzy argumentowali, opierając się na swoich ustaleniach, że naturalna odporność powinna być uznawana wraz ze szczepionkami, gdy władze rozważają ograniczanie podróży, dostępu do miejsc i pracy w oparciu o status szczepień.

A także ciekawostka odnośnie ograniczeń samych badań:

First, the number of studies available is generally low, particularly for those that have examined protection as a function of time since infection for severe disease, that report data on the omicron BA.1 variant and its sublineages in particular, and that come from Africa that met our inclusion criteria.

Afryka jest tu dość wyjątkowa od początku - dużo większa ekspozycja na słońce (i wit D), przbywanie na świeżym powietrzu lub dobrze wentylowanym (zwłaszcza gdy twoja lepianka nie ma okien)

I kolejne:

Second, there was evidence of publication bias for three of 13 variant outcomes assessed in our study. Third, in estimating protection, we are relying on observational studies, which are prone to residual confounding. Fourth, studies used a variety of approaches for ascertaining past infection status, comprising antibody prevalence, documented history of infection, or a combination of the two. Incomplete or in some cases over-ascertainment of past infections might bias the estimate of protection. Fifth, underlying studies also vary in the extent to which they measure hospitalisation because of COVID-19 versus hospitalisation with an incidental COVID-19 infection. This bias might affect our estimates of protection against severe disease, particularly during the initial omicron wave when transmission was very high. Finally, in our analyses of protection by time since infection, compositional bias exists in terms of the different time periods that the underlying studies have assessed. We have attempted to control for this bias with the use of study random effects.

Z ciekwości przegladnalem lekko stronę - niesamowicie foliarskie treści tam wpadają niekiedy