clusters of infection. in the city of xian, level 2 lock down, the whole city considered a controlled area which means schools, public transportation are closed. all but essential services are stopped. that means that in every household, just one designated person can go out to get groceries once every two days and otherwise, unless there's a medical emergency, you have to stay inside. all of this affecting 13 million people for just over 200 confirmed cases, state media saying 30,000 of their close contacts are in government quarantine right now. china is just weeks away from the opening ceremonies, beijing 2022 winter olympics and trying to keep covid from spreading inside the country just before the lunar new year travel rush. >> and many thanks to all our international correspondents. i'm ryan nobles in washington. thank you for joining me on this holiday weekend. appreciate you watching. have a good night.