And when you return, you should be careful with what you do immediately after getting back and limit large gatherings. “Testing is still really important,” especially for people traveling internationally, said Aniruddha Hazra, an assistant professor at the University of Chicago Pritzker School of Medicine and an infectious diseases and global health expert. International travelers especially should test for COVID-19 three to five days after returning, according to CDC guidelines, and it is also encouraged for domestic travelers.
