The death toll in China's Hubei province from a coronavirus outbreak leapt by a record 242 on Thursday to 1,310, with a sharp rise in confirmed cases after the adoption of new methodology for diagnosis, health officials said.

The rise in the toll more than doubled the prior provincial daily record of 103 set on Monday, while the number of new cases soared by 14,840 — also a daily record — to a total of 48,206 cases.

Health officials in the province, the epicenter of the epidemic, said they had started including people diagnosed using the new methods from Thursday. Excluding cases confirmed using the new methods, the number of new cases rose by only 1,508, the official data showed.