Four of the agency’s six regions reported a rise in numbers, with Africa and the Western Pacific excluded.
"This is disappointing, but not surprising," said WHO chief Tedros Adhanom Ghebreyesus, speaking during his biweekly press briefing from Geneva.
According to him, the increase is mainly due to relaxing of public health measures, continued circulation of variants, and people letting down their guard.
The jump in cases comes as the rollout of covid-19 vaccines continues.
Ghana and Côte d’Ivoire began vaccinating health care workers on Monday, becoming the first countries to benefit from a global mechanism for ensuring vaccine equity.
Through the COVAX Facility, WHO and our partners are working to ensure every country can begin vaccination within the first 100 days of the year.
COVAX will deliver 11 million doses to countries this week.
By the end of May, some 240 million doses will be allocated to 142 participating countries.