Coronavirus 'has become rampant,' but shows no signs of mutating into deadlier form

China's central government announced Sunday that it's taking the reins in response to the outbreak of the coronavirus from local officials in Hubei province, home to the virus' city of origin, Wuhan.

Ma Xiaowei, the head of the country's National Health Commission, said "we are now in a critical period of prevention and control." It appears the coronavirus is becoming more contagious — Zhou Xianwang, the mayor of Wuhan, said experts will likely soon confirm another 1,000 infection cases. Meanwhile, the death toll resulting from the disease rose to 56, including the first fatality in Shanghai.

"The virus has become rampant," said Gao Fu, the director of the Chinese Center for Disease Control and Prevention.

But despite the severity of the situation, Gao also doled out some optimism. He said the virus hasn't shown any signs of mutating into a more deadly form, and revealed that a vaccine may soon be available.

Most of the cases are confined to China, but a third case was confirmed in the United States, after a person in Orange County, California, tested positive. The patient is being treated and is reportedly in "good condition." Read more at The Wall Street Journal and The New York Times.