Mandatory credit: @WHO Adults must consider their behaviour coming into winter – with countries facing a stark choice between keeping children in school or bars and nightclubs open, a global health expert has warned. Infection will grow “no question” in Europe as people move back indoors in the coming months and the continent is facing “that moment” where big decisions will have to be made, Dr Michael Ryan, executive director of the World Health Organisation (WHO) Health Emergencies Programme said.