Thursday, May 13. Here’s what’s happening with the coronavirus in California and beyond. Newsletter Get our free Coronavirus Today newsletter Sign up for the latest news, best stories and what they mean for you, plus answers to your questions. Enter email address You may occasionally receive promotional content from the Los Angeles Times. You’d think, nearly a year and a half into the pandemic, public health officials would have figured out a way to keep mask guidelines clear and simple. Not so much. Advertisement The less-than-ideal messaging proficiency of the federal Centers for Disease Control and Prevention was on display again Thursday, when its mask guidance changed just two weeks after its previous update.