The Chinese capital, Beijing, banned visitors from areas with infections in the past 14 days and Gansu province in the northwest closed tourist sites after coronavirus cases were found.
Some 65% of stocks in the S&P 500 closed higher, led mainly by financial and health care companies, but losses in communication and technology companies held the S&P 500 down.
Snapchat’s parent company, Snap, plunged 26.6% after reporting weak revenue and disclosing that its ad sales are being hurt by a privacy crackdown that rolled out on Apple’s iPhones earlier this year.
Brent crude, used as the price basis for international oils, lost 26 cents to $85.27 per barrel in London.