Coronavirus antibodies might
not last long, according to a new study from the Barcelona Institute for Global
Health.
A total of 36% of
unvaccinated COVID-19 patients had no detectable antibodies left one year after
infection.
Researchers looked at over
1,000 people and found it was especially the case for adults over the age of 60
and smokers.
The study shows the
longest-lasting protection comes from vaccination plus a prior infection.