Young people “are not invincible”, the World Health Organization (WHO) said on Thursday.

“Evidence suggests that spikes in cases in some countries are being driven in part by younger people letting down their guard during the northern hemisphere summer,” WHO chief Tedros Adhanom Ghebreyesus said.

“We have said it before and we’ll say it again: young people are not invincible. Young people can be infected; young people can die, and young people can transmit the virus to others,” he added.