This study estimates that immunity to COVID-19 from being infected will last 1,717 days.
The Delta variant does not fuck around. From Our World In Data:
This article says that more people are trying to enter Canada from the US, but they are turning away about half of them, mostly because they had not followed the vaccination rules correctly.
This article talks about the explosion of preprint papers during the pandemic, and what that means for Science.
This article reports on a paper which votes against COVID-19 being a lab leak.