Dr. Kluge said that there were 1.8 million new cases and about 24,000 deaths in the European region in the past week. “We are at another critical point of pandemic resurgence,” Dr. Kluge said. “Europe is back at the epicenter of the pandemic — where we were one year ago.” The region is reporting an average of more than 30 new cases a day for every 100,000 people, a rate that has almost doubled since mid-September. Eighteen of the 20 countries around the world that are reporting the most new cases per day, relative to their populations, are in Europe or the part of Central Asia that the W.H.O. includes in its European region. New reported cases reached a record high in Germany on Wednesday, when the nation recorded 33,949 new infections in a 24-hour period. Only 67 percent of the country is fully vaccinated. Covid-related deaths in Europe are also increasing. “If we stay on this trajectory, we could see another half a million Covid-19 deaths in Europe and Central Asia by the first of February next year,” Dr. Kluge said.