Background It is critical to understand whether infection with Severe Acute Respiratory
Syndrome Coronavirus 2 (SARS-CoV-2) protects from subsequent reinfection. Methods We …

Background The relationship between the presence of antibodies to severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) and the risk of subsequent reinfection …

Background Increased understanding of whether individuals who have recovered from
COVID-19 are protected from future SARS-CoV-2 infection is an urgent requirement. We …

Identifying the potential for SARS-CoV-2 reinfection is crucial for understanding possible
long-term epidemic dynamics. We analysed longitudinal PCR and serological testing data …

Uncertainty exists whether mild COVID-19 confers immunity to reinfection. Questions also
remain regarding the persistence of antibodies against SARS-CoV-2 after mild infection. We …

Background There is an urgent need to better understand whether individuals who have
recovered from COVID-19 are protected from future SARS-CoV-2 infection. Methods A large …

Objectives Antibodies to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)
are a key factor in protecting against coronavirus disease 2019 (COVID-19). We examined …

Objectives To investigate serological differences between SARS-CoV-2 reinfection cases
and contemporary controls, to identify antibody correlates of protection against reinfection …

Most individuals seroconvert after infection with severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2), but being seronegative is observed in 1 to 9%. We aimed to …

Background Antibody waning after SARS-CoV-2 infection may result in reduction in long-
term immunity following natural infection and vaccination, and is therefore a major public …