What’s the difference between viral shedding and reinfection with COVID-19?

We are on our summer break and the editorial office is closed until 18 January. In the meantime, please enjoy our Summer Hiatus series, in which our journalists have selected articles from our 2020 news and clinical archives, The Conversation and other publications with which we share content. Please note the comment function has been turned off while we are away. Happy reading.

From Martin Johnston: I chose this article because how long a COVID-19 case can be infectious and whether they can catch a second dose have been important questions in the pandemic. The article explains there is uncertainty about whether all viral particle shedding recorded from cases is infectious