There isn't really a way to know for certain (as not much time has passed), but there are hints that it might last for years[0]. [0]: https://www.nytimes.com/2

There isn't really a way to know for certain (as not much time has passed), but there are hints that it might last for years[0]. [0]: https://www.nytimes.com/2020/11/17/health/coronavirus-immunity.html https://www.nytimes.com/2020/11/17/health/coronavirus-immuni... (with links to the studies inside)