… prevalence of reinfection after recovery from COVID-19 was very low and that prior infection
… an 80% protective efficacy against reinfection (assuming baseline prevalence of 5%). The …

… as the adaptive immune response endowed with immune … in the majority of patients recovered
from COVID-19 even in the … achieved 76% COVID-19 sero-prevalence in October 2020, …

… -CoV-2 gives a relatively good idea of immunity against the virus after recovery. However,
the best way of measuring immunity to COVID-19 after recovery is by measuring reinfection. …

… ) constitute the three major components of acute adaptive immunity to a viral infection. …
infection, ∼6–10 days after priming (Figure 2A), due to the inherent time demands for extensive …

… on the acquired immunity and the possibility of reinfection. … Several extensive studies have
indicated a marked increase … COVID-19 patients indicated that a higher frequency of KIR2DL1 …

… based on the acquired immunity and possibility of reinfection. Our … Because of the low
frequency of neutralizing antibody titers in … for complete immunization within the recovery process. …

… on the immune profile of COVID-19-recovered CP donors, we … days after a complete recovery
from SARS-CoV-2 infection (… At eight months post infection, the prevalence of the CD11b+ …

… found that people who recovered from COVID-19 and tested … previously been infected had
a COVID-19 incidence rate of 4·… with the acquired immunity due to either previous infection or …

… following an episode of COVID-19 are necessarily attributable to SARS-CoV-2 infection (…
specimens from individuals that had recovered from severe COVID-19, and from mouse models …

… that naturally acquired immunity following recovery from a SARS-CoV-2 infection was … -dose
hybrid immunity (incidence rate [IR] 0·04) compared with 113 individuals with natural …