Who have already been infected, in addition to having stronger T cell and memory B cell immunity, which is more significant than antibody levels.
“In vaccinated subjects, antibody titers decreased by up to 40% each subsequent month while in convalescents they decreased by less than 5% per month.”
8) Irish researchers, May 18, 2021, Wiley Review, Eleven cohort studies including more than 600,000 recovered COVID patients who were monitored for more than ten months were reviewed by researchers.
The most important discovery? In contrast to the vaccination, they discovered “no study reporting an increase in the risk of reinfection over time” after four to six months.
9) The Lancet, April 27, 2021, Cornell University, Doha, Qatar In a subgroup of patients with supporting evidence of reinfection,
This is one of the few studies that used whole genome sequencing to examine the population-level risk of reinfection.
