Some countries and communities have been lured into a "false sense of security" that the pandemic's over and the vaccinated are fully protected against Covid, WHO Director-General Dr.

He noted that Covid vaccines "save lives" and lower the risk of severe disease and death, but the vaccinated can still contract and spread the virus as social mixing returns to pre-pandemic levels.

The WHO's office covering Europe and Central Asia said Tuesday that those regions have surpassed a combined 1.5 million Covid deaths and could suffer 700,000 more fatalities by March 2022.

CDC panel unanimously endorses Pfizer and Moderna Covid boosters for all U.S.

Covid infections are also rising in the U.S., with more than 95,000 new cases reported daily on average, according to data from Johns Hopkins University.

from the virus on average, according to Hopkins.

The fully vaccinated should wear facial coverings indoors or in crowded outdoor areas in places with elevated Covid transmission, according to the agency.

Food and Drug Administration and a Pfizer board member, told CNBC that more vaccinated people are contracting the virus than people realize due to weak monitoring of breakthrough infections in the U.S.

cleared Pfizer and Moderna boosters for all adults on Friday.

Germany is also weighing whether to introduce a lockdown as the country's seven-day new case average reached a record-high of more than 53,100 per day on Tuesday, up 29% from the week before, according to a CNBC analysis of data from Johns Hopkins University.