IT HAS been nearly four years since the covid-19 pandemic began, and many of us would love to forget all about it. But there are millions for whom that is impossible. For them, covid-19 still looms large due to lingering symptoms that remain months, even years, after the initial infection.
Thankfully, interest in long covid, as the condition is known, has been high and our understanding of this post-viral disease has advanced rapidly. As we describe in our feature on page 36, researchers are building a detailed picture of how it affects people’s health, including impacts on the immune system,…