The new wave of COVID-19 outbreak across the world is now at a “critical juncture” as the Northern Hemisphere faces an alarming spike in cases, the World Health Organization (WHO) on Friday warned, urging governments to impose immediate actions to curb the spread of the virus.“We are at a critical juncture in this pandemic, particularly in the Northern Hemisphere,” WHO Director-General Tedros Adhanom Ghebreyesus said on Friday.