Under new restrictions https://www.dhs.gov/publication/notice-arrival-restrictions-applicable-flights-carrying-persons-who-have-recently that went into effect at 5 p.m. ET Sunday, U.S. citizens who have traveled in China within 14 days will be directed to one of eight airports designated for screening, with three more to be added Monday.
The number of confirmed coronavirus infections now exceeds 17,300, with the vast majority of cases in mainland China.
A total of 17,205 people have been infected with the disease and 361 have since died, according to the National Health Commission of the People's Republic of China.
That puts the national total over 16,480, based on numbers previously issued by the central government.
The coronavirus is believed to have originated in a market that traded illegally in wildlife in Hubei's provincial capital, Wuhan.
The 57 confirmed new deaths was the single-biggest increase since the virus was detected late past year in the central city of Wuhan, where it is believed to have jumped from animals at a market into humans.
Germany's health minister has said the country is well equipped for an outbreak.
Chunying singled out Canada in the press conference, praising the Canadian government for not enacting a travel ban like the U.S.
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The U.S.is relying on the country's health system as a second line of defense.
China's top leadership has admitted "shortcomings and deficiencies" in the country's response to the deadly coronavirus outbreak.
CNN report that Chinese Premier Li Keqiang has asked the European Union to help China procure medical supplies, as patients and medical staff have also told their reporters of delays in testing for the virus, raising concerns that the outbreak in China may be worse than is now being reported.
They were part of a medical school's alumni group on WeChat, a popular social network in China, and they were concerned that SARS, Severe Acute Respiratory Syndrome, was back.
However, health officials consider more concerning the fact that there are over 350,000 Chinese students pursuing higher education in the United States, many of whom have traveled to their home country in recent weeks.
The Chinese data on the numbers of infections and deaths suggests the new coronavirus is less deadly than the 2002-03 outbreak of Severe Acute Respiratory Syndrome (SARS), which killed almost 800 people of the some 8,000 it infected, although such numbers can evolve rapidly.
It follows the United States decision to declare a public health emergency and deny entry to foreign nationals who had visited China in the past two weeks.
"But in the meantime, some countries, the U.S. in particular, have inappropriately overreacted, which certainly runs counter to World Health Organization advice". The study said that more than 75,000 people have been infected by coronavirus as of January 25.