T-cell immunity lasts at least 6 months

[starfro]

www.bbc.co.uk/news/health-54781496

Who would have thought the human immune system wasn't completely useless and forgets about an infection in 60 days?

As an aside, with SARS 1 they can still see immunity 17 years later in people who had that virus, 15 years after antibodies were no longer detectable.

This paper is interesting, they’ve looked at the B cells which produce Ab’s several months after someone is infected. We know that initial circulating Ab’s decrease after a few months but it looks as though the cells that produce them can subsequently churn new ones out that are even more effective than those produced to fight the initial infection. And they can do this much quicker the second time round.

They found residual virus in the small intestine and theorise that these help the immune system evolve and refine its response.

Obviously, a vaccine won’t have the same effect but does look like very good news for those that recover from being infected.

www.biorxiv.org/content/10.1101/2020.11.03.367391v1

France has just had over 800. Are these deaths totally irrelevant to you?!

To be honest these deaths are irrelevant to me. 150,000 people die every day and their deaths are largely irrelevant to anyone who didnt know them. If 800 people died in one day from some other cause would you be upset about it? Would you even know?