And this will be effective on how many strains of Covid-19?
And this will be effective on how many strains of Covid-19?
Excellent question. The difficulty of the answer can be recognized by the absence of vaccines for other coronaviruses and rhinoviruses.
I know one young lady that is a teacher. she was confirmed to have COVID-19 in March and September of 2020. She was much more ill the second time around. Otherwise of good health and not someone that is ill frequently. She has the immunity system of a teacher.