2021.7.26, 8.31: news.health/immunity/covid-19/
natural immunity after infection persists even with low antibodies:
summary:
. it is shown that after a covid-19 infection
there is long-lasting immunity
even when the antibody count is low
because covid-19 is slowly developing
thereby giving the memory cells time to react
by growing more antibodies when needed.
. the CDC recommends even those who have been infected
should get the vaccine; apparently because,
the recently vaccinated with their higher antibodies,
will be quicker at stopping the spread of the virus
than people who have survived an infection and then
slowly make more antibodies when reinfected.
. the politics of this question are based on
a dispute over the likelihood of vaccine injury.