"People are still thinking about seasons. What we all need to get our heads around is this is a new virus and…this one is behaving differently," Margaret Harris told a virtual briefing in Geneva, urging vigilance in applying measures to slow transmission that is spreading via mass gatherings.
She also warned against thinking in terms of virus waves, saying: "It's going to be one big wave. It's going to go up and down a bit. The best thing is to flatten it and turn it into just something lapping at your feet."