>Importantly, cognitive impairments are not limited to those with ongoing systemic symptoms; they are also evident in COVID-19 recovered individuals (COVID-RHC) who no longer report active symptoms, compared to healthy controls without SARS-CoV-2 infection (Non-COVID-HC) (Hampshire et al., 2021)
The finding was done in 2021, it's not clear to me if it's an issue years out or it's just a manifestation of post-viral syndrome. Also today there are unlikely to be any people who haven't been infected by sars-cov2
Well, even the antibody titre isn't foolproof (some people do not react or have their immune system later wiped).
However having no antibody titre is pretty good sign you never had it.
Not sure if there's a portable cheap blood test for it yet. Should be one, like for the active disease.
The finding was done in 2021, it's not clear to me if it's an issue years out or it's just a manifestation of post-viral syndrome. Also today there are unlikely to be any people who haven't been infected by sars-cov2