The Shanghai Composite index tumbled 8.7% Monday then rebounded slightly as Chinese regulators moved to stabilize markets reopening from a prolonged national holiday despite a rising death toll from a new virus that has spread to more than 20 countries. Japan's Nikkei 225 index lost 1.0% to 22,971.94, while the S&P ASX/200 declined 1.3% to 6,923.30. In South Korea, the Kospi gave up 0.2% to 2,114.87. Hong Kong's Hang Seng, which has many mainland Chinese heavyweights, climbed 0.2% to 26,363.37, AP reported. Benchmark U.S. crude oil picked up 6 cents to $51.63 per barrel in electronic trading on the New York Mercantile Exchange. It lost 58 cents to $51.56 on Friday. Brent crude, the international standard, gave up 25 cents to $56.37 per barrel. In currency trading, the U.S. dollar rose to 108.50 Japanese yen from 108.35 yen on Friday. The euro slipped to $1.1087 from $1.1095.