A new coronavirus variant has been detected in South Africa that scientists say is a concern because of its high number of mutations and rapid spread among young people in Gauteng, the country's most populous province, Health Minister Joe Phaahla has announced.

The coronavirus evolves as it spreads and many new variants, including those with worrying mutations, often just die out. Scientists monitor for possible changes that could be more transmissible or deadly, but sorting out whether new variants will have a public health impact can take time.

The holiday tree is towering over the main square in this central German city, the chestnuts and sugared almonds are roasted, and kids are clambering aboard the merry-go-round just like they did before the pandemic. But a surge in coronavirus infections has left an uneasy feeling hanging over Frankfurt's Christmas market.

To savor a mug of mulled wine — an uncomplicated rite of winter in pre-pandemic times — masked customers must pass through a one-way entrance to a fenced-off wine hut, stopping at the hand sanitizer station. Elsewhere, security officers check vaccination certificates before letting customers head for the steaming sausages and kebabs.

Germany is set to mark 100,000 deaths from COVID-19 this week, passing a somber milestone that several of its neighbors crossed months ago but which Western Europe's most populous nation had hoped to avoid.

Teutonic discipline, a robust health care system and the rollout of multiple vaccines — one of them homegrown — were meant to stave off a winter surge of the kind that hit Germany last year.

Spain's top research institution reached a licensing deal Tuesday that paves the way for its Covid-19 antibody test to be produced more cheaply in developing countries.

Israel on Tuesday began administering the coronavirus vaccine to children age 5 to 11.

The country recently emerged from a fourth COVID wave, and daily infections have been relatively low for the last few weeks. But Health Ministry statistics show that a large share of the new infections have been in children and teenagers.

The German military is poised to make coronavirus vaccines mandatory for troops as COVID-19 infections continue to rise across the country.

The Defense Ministry on Tuesday confirmed a report in the German military blog Augen Geradeaus that officials and soldiers' representatives agreed late Monday to add the coronavirus shot to the list of vaccines soldiers must get. The measure still needs to be formally added to military regulations, the ministry said in a statement.

A fresh wave of protests broke out in several European cities and in some French overseas territories Sunday, as protesters reacted, sometimes violently, to moves to reintroduced coronavirus restrictions.

Tens of thousands took to the streets in cities across Europe and Australia Saturday as anger mounted over fresh Covid restrictions imposed against a resurgent pandemic.

Police opened fire on protesters and seven people were injured in rioting that erupted in downtown Rotterdam around a demonstration against COVID-19 restrictions. The Dutch city's mayor called it "an orgy of violence."

Mayor Ahmed Aboutaleb told reporters in the early hours of Saturday morning that "on a number of occasions the police felt it necessary to draw their weapons to defend themselves" as rioters ran rampage through the port city's central shopping district, setting fires and throwing rocks and fireworks at officers.

The U.S. government will pay drug maker Pfizer $5.29 billion for 10 million treatment courses of its potential COVID-19 treatment if regulators approve it.

Pfizer asked the Food and Drug Administration on Tuesday to authorize the experimental pill, which has been shown to significantly cut the rate of hospitalizations and deaths among people with coronavirus infections.