State media has maintained a steady drumbeat of positive news about the outbreak, praising the sacrifices of responders and everyday people. But there was little doubt the disease had derailed celebrations of the Lunar New Year, the country’s biggest holiday and busiest travel period.

Travel constraints imposed earlier in Wuhan and 12 nearby cities have effectively penned in 35 million people. Wuhan tightened its restrictions further on Saturday, with a ban on most vehicle traffic in the city center.

The restrictions began spreading far beyond Wuhan, too: In Beijing, the city government said it would halt all inter-province buses beginning on Sunday, effectively limiting road travel into the capital.

The association of China’s travel agencies said that it would suspend all tour groups and the sale of flight and hotel packages for citizens headed overseas, starting on Monday. Groups already on their trips were allowed to continue, with the directive that travelers’ health be closely monitored.

The move to cut off group tours could have a ripple effect across countries that depend on Chinese tourists. While China is now home to an increasingly sophisticated population ready to hit the tourist routes by themselves, a large number of Chinese do not feel comfortable traveling abroad unless they are with a group.

New measures were also imposed in Hong Kong, where its leader, Carrie Lam, declared a health emergency. Five coronavirus patients connected to Wuhan are being treated in Hong Kong, and more than 100 others are suspected of having the viral pneumonia.

Lunar New Year celebrations are being canceled in Hong Kong, schools will be closed until mid-February and the Hong Kong Marathon has been called off. The city is also suspending flights and train services to Wuhan.