Subsequently, when the infection spreads and the number of immune people increases, the virus also benefits from evading naturally induced immunity and thus gaining the chance of infecting the same patient twice (or more times). User Extreme-Owl-7934, in the covidlonghaulers subreddit, 01 Mar 2021
Assessing the human immune response to SARS-CoV-2 variants User GallantIce, in the COVID-19 subreddit, 01 Mar 2021