COVID-19: Facemasks must have 3 layers – WHO issues new precautions
World Health Organization (WHO) has updated its guidance on facemasks amid the coronavirus pandemic. WHO Director-General, Tedros Adhanom Ghebreyesus, listed...
World Health Organization (WHO) has updated its guidance on facemasks amid the coronavirus pandemic. WHO Director-General, Tedros Adhanom Ghebreyesus, listed...