Scientists are still unsure how frequently kids and teens pass COVID to others
Even if kids are less likely to spread COVID, going to school gives them loads of opportunities to do so. (pexels/)Follow all of PopSci’s COVID-19 coverage here, including tips on cleaning groceries, ideas for hosting a virtual party, and the argument against using valved masks.Schools around the country continue to reopen, with some districts leaning on remote learning while others let kids pack maskless into halls. Seven months into the COVID-19 pandemic, scientists know far more about the novel virus than they did at the start. Even so, there’s still plenty of unknowns, including how readily kids spread COVID, and for how long people remain immune once infected. Uncovering these mysteries will play a crucial role in our ability to return schools, businesses, and our lives to something like normal. Here’s everything you need to know this week.After getting COVID-19, the CDC says, don’t bother retesting for three months unless...