A Chinese-owned firm sent a letter on Tuesday to the editors of The New York Times to warn that a new pandemic has started and that some people in the country could be infected with the virus.
The letter, written in Chinese, was the first from a Chinese company to publicly express concern about the spread of the new Ebola virus in China.
It comes just days after a Chinese medical charity, the Beijing Medical Society, said it had seen two cases of the virus in the Chinese capital.
“The number of cases has increased dramatically and the spread is spreading faster than we expected,” the letter from the China Medical Academy of Medical Sciences said.
“In the past two weeks, there have been cases of people contracting the virus at the workplace.
We believe the new pandemics is due to a sudden increase in the number of infections.
We also believe that the spread to remote areas is very dangerous.
We are asking you to carefully consider the impact on the local people.”
The letter came a day after the Shanghai Public Security Bureau warned of the possibility of more cases, including that of a doctor who has tested positive for Ebola, and warned of possible outbreaks in the city of Tianjin and the rest of Zhejiang province.
The Shanghai Public Safety Bureau said it has already been alerted of two cases in the central city of Shandong.
“There is no reason to panic,” the bureau said in a statement on Tuesday.
“We are alerting all our staff, who are already working at home or at school, and will keep on monitoring the situation.”
It added that it would do its best to contain the spread.
The outbreak of the Ebola virus has seen several localised outbreaks in China in recent months, but there has not been an outbreak in the capital of Beijing.
The pandemic, which has seen hundreds of thousands of people killed and millions of people forced to flee their homes, has forced many Chinese cities to scale back.
The Global Times, an influential state newspaper, last week published a cartoon showing a man in a hospital bed with an apparent Ebola infection.
The paper said that Chinese authorities were preparing to deploy “more troops” to fight the virus, but it did not elaborate on the details.
China is not the only country that has been hit by the Ebola outbreak.
In Vietnam, a doctor in a southern Chinese city recently tested positive and a man was found dead in the southern city of Chongqing.