Lack of antibodies in the bloodstream does not equate to lack of immunity.<p>- There could be antibodies at the mucosal level (IgA)<p>- There could be cellular responses (T cells) that aren't detected<p>- There could be immunological memory at play after antibodies aren't detectable anymore<p>A critique of the work, a little heavy-handed:<p><a href="https://statmodeling.stat.columbia.edu/2020/06/17/some-forecasting-for-covid-19-has-failed-a-discussion-of-taleb-and-ioannidis-et-al/#comment-1363907" rel="nofollow">https://statmodeling.stat.columbia.edu/2020/06/17/some-forec...</a> (this specific comment)
I read that too before [1].<p>On contradiction [2], from today.
"Despite that, Gates said recent evidence points to the antibody response being "very strong," which suggests about a year of immunity to anyone who gets the disease."<p>It gets incredibly difficult to make opinion on all this.
In the meantime, people are dying. That's verifiable.<p>[1] <a href="https://www.reuters.com/article/us-health-coronavirus-antibody/antibody-levels-in-recovered-covid-19-patients-decline-quickly-research-idUSKBN23T1CJ" rel="nofollow">https://www.reuters.com/article/us-health-coronavirus-antibo...</a>
[2] <a href="https://edition.cnn.com/2020/06/25/us/bill-gates-coronavirus-town-hall-us/index.html" rel="nofollow">https://edition.cnn.com/2020/06/25/us/bill-gates-coronavirus...</a>