Reservoir, apparently…
Epidemiologist Wu Zunyou has said he believes the current spike in infections would run until mid-January, while the second wave would then be triggered by mass travel in January around the week-long Lunar New Year celebrations which begin on 21 January. Millions of people usually travel at this time to spend the holiday with family.
The third surge in cases would run from late February to mid-March as people return to work after the holiday, Dr Wu said.