[Steve]

Reinfection With Severe Acute Respiratory Syndrome Coronavirus 2: What Goes Around May Come Back Around -

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has spread around the world, causing the coronavirus disease 2019 (COVID-19) pandemic. In less than a year since its emergence in December 2019, >32 million cases have been detected worldwide and, as of this writing, COVID-19 has resulted in >1 000 000 deaths [1]. Multitudes have recovered from COVID-19, but it has been uncertain whether they are immune to being reinfected with SARS-CoV-2 or, if not, whether the disease course during a second episode would be mitigated, similar, or worse than the first infection. As reports of reinfection begin to appear [2–5], including a person in South Korea described by Lee and colleagues in this issue of Clinical Infectious Diseases [6], and other individuals around the world (Table 1), what are the implications for our understanding of immunity to SARS-CoV-2 and the prospects for a COVID-19 vaccine?


https://academic.oup.com/cid/article/73/...login=true