The death toll from coronavirus outbreaks has risen to 25, with the number increasing to 830 cases.
The National Health Commission said authorities were also investigating 1,072 suspected cases of coronavirus first detected in downtown Wuhan.
The dramatic increase was released within hours after the World Health Organization (WHO) said the situation had not yet become a global health emergency.
China has issued quarantine orders to almost 20 million people in Wuhan and nearby cities in response to the virus.
China has also announced measures to curb the outbreak as millions of people begin their journey across the country this week following the Chinese New Year holidays.
The shopping center and road in Wuhan, a major transportation and industrial hub, were left silent after authorities told residents not to leave the city of 11 million people where the case was first identified.
The commission said the death toll was being revised following eight new deaths yesterday and 259 new cases were reported nationwide.
He added that out of the 830 confirmed cases, 177 victims were in serious condition. 34 patients were reported cured and discharged from the hospital.
The virus is said to have originated in a seafood and animal market in Wuhan with cases reported to have spread to the United States.
The latest coronavirus raised concerns following the fact that it is believed to be associated with Severe Acute Respiratory Syndrome (SARS), which led to the deaths of nearly 650 people throughout mainland China and Hong Kong from 2002 to 2003.
After two days of discussions to conclude the level of global concern, the WHO has not declared it a public health emergency at the international level of concern, a declaration used for the most severe epidemics.