In addition to wearing masks, the US CDC also has new opinions on whether vaccinated people need to be tested
Chinanews.com, July 29. According to the US Chinese website, the widespread spread of Delta’s new crown variant virus has led to a national rebound. The Centers for Disease Control and Prevention (CDC) has revised the guidelines for wearing masks for vaccinated people. In addition, At the same time, the testing guidelines for people who have been fully vaccinated have been updated.