Till now, Tibet was the only province in China that had not registered any cases. "This means remaining in your accommodation and limiting your contact with others".
Amid fears, the government has delayed restart of schools, universities.
-Taiwan's Eva Air announced a partial cancellation of flights to and from mainland China for two weeks starting February 2.
Four cases have been confirmed in Germany, making it the second European country to report cases, after France.
In the meantime, Prime Minister Boyko Borissov has said that the Ministry of Foreign Affairs has been tasked to monitor whether the Bulgarian students in Wuhan can be relocated from the Chinese city. Students from areas not affected by coronavirus are being encouraged to return home, and the University has offered a $1,000 stipend to cover travel expenses.
"UL does not now have any students studying or on placement in China".
As of earlier Tuesday, there were 4,515 confirmed cases of coronavirus, according to the Chinese National Health Commission.
Meanwhile, the first Japanese government charter flight with 206 of its nationals arrived Wednesday in Tokyo from Wuhan, as part of an operation to evacuate around 650 citizens.
"Through continuous communication with Kenya Airways we have asked that they give us the passenger manifest and sent alerts to all passengers to present themselves to the nearest facility should they exhibit any symptoms", he said.
The airline, based in the Urals city of Yekaterinburg, was halting flights to Munich, Paris and Rome as well as the Japanese city of Sapporo until the end of winter, it said in a statement.
Novel coronavirus (nCoV) is a large family of viruses that causes illnesses ranging from common cold to acute respiratory syndromes.
International SOS, a medical and travel security services firm that advises companies on travel, said its guidance for now was that business travel to China outside Wuhan's province of Hubei could continue.
"The U.S. State Department and Centers for Disease Control and Prevention have recommended that all non-essential travel to China be deferred due to the outbreak of the novel coronavirus", they wrote in the email.
The Geneva-based United Nations agency, however, on Monday admitted an error in its risk assessment of China's deadly virus.
Passenger traffic at airlines such as Cathay and China Southern plunged 32% to 37% in the first half of 2003 because of the SARS pandemic, Teo and Muckensturm added.