I am so old, I remember in 2020 and 2021 and 2022 when public health “experts” told us there was no evidence you could have natural immunity to Covid-19 – the only way to get immunity they said, was through a vaccination. (Which made no biological sense but whatever – and yes, I did get vaccinated several times – and also had Covid-19.)
Here we are in 2024: Scientists tried to give people COVID — and failed (nature.com)
The study implies that those who previously had Covid have pretty good natural immunity. Some still had Covid-19 again, but not severely.
