Federal health officials may soon cut recommendations for how long people should isolate after testing positive for COVID-19. People who have a confirmed COVID-19 infection are currently told by the Centers for Disease Control and Prevention (CDC) to remain separate from others for 10 full days from when symptoms first appear, if 24 hours have also gone by without a fever and other symptoms are improving. Even people who show no symptoms are told to isolate for 10 days. People who don’t show symptoms initially but do later are directed to start their isolation period anew. The CDC’s recommendations aren’t mandatory, but are used by companies and governments across the nation. With the rise in so-called breakthrough infections, or cases among the vaccinated, combined with many patients showing no symptoms, some are agitating for a change in the guidance. Top Delta Air Lines executives asked Dr. Rochelle Walensky, the CDC’s …