BEIJING — A Chinese health official on May 2 urged people to wear masks correctly and avoid travel during peak hours over coronavirus concerns in the May Day holiday.

Travelers are encouraged to reserve visiting slots in advance, and pay attention to their temperatures, said Mi Feng, a spokesperson for the National Health Commission, at a press conference in Beijing.

Some tourist attractions have seen large crowds of tourists not wearing masks on May 1, the first day of the five-day May Day holiday, Mi said.

China recorded more than 23 million domestic tourist trips on May 1, with the domestic tourism revenue reaching over 9.7 billion yuan (about $1.38 billion), according to the Ministry of Culture and Tourism.

This year's May Day holiday runs from May 1 to 5.