On January 29, WHO Director-General Tedros Adhanom Ghebreyesus called on the world to use COVID-19 vaccines in a fair and effective way to ensure more people will be given shots in the future. Meanwhile, Singaporean Prime Minister Lee Hsien Loong said countries around the globe should cooperate with each other to cope with major global challenges including COVID-19 while addressing the Davos Agenda 2021 via a video link.