Due to the rapid spread of the omicron variant of the corona virus, another Chinese metropolis has been locked down.

As the authorities in the northeast Chinese metropolis of Changchun announced on Friday, only one person per household is allowed to leave the apartment every two days to shop.

In addition, all around nine million residents of the city are to be tested for the virus.

The authorities decided to take drastic measures after several hundred infections had been discovered in Jilin province and its capital Changchun in the past few days.

China is currently experiencing the largest virus wave since the first corona outbreak in the central Chinese city of Wuhan two years ago.

Nationwide, 1,369 new infections were reported on Friday.

Significantly more corona deaths?

In addition, a new study suggests that the pandemic may have cost significantly more lives worldwide than previously thought.

Between January 2020 and December 2021, 18.2 million more people died than would have been expected in non-pandemic years.

Only 5.9 million corona deaths were officially recorded during this period.

"Our results indicate that the full impact of the pandemic was much greater than the official statistics suggest," writes the international research team led by Haidong Wang from the Institute for Health Metrics and Evaluation (Seattle/USA) in the journal The Lancet "

According to the models, 120 out of 100,000 people worldwide died as a result of Corona, in 21 countries this excess mortality rate was over 300. The scientists found the highest rates in the Andean countries in Latin America (512 deaths per 100,000 inhabitants), in East (345) and Central Europe (316) and Sub-Saharan Africa (309).

In some countries such as Iceland or Australia, however, according to estimates, even fewer people died in the pandemic years than would have been statistically expected.

The sometimes large differences between the registered and the actual number of deaths are probably due to a lack of diagnoses due to a lack of tests and problems with reporting the numbers.

It is currently unclear how many people died directly from the corona infection and how many from indirect consequences of the pandemic.

"Studies from several countries, including Sweden and the Netherlands, suggest that Covid-19 was the direct cause of most excess deaths, but we currently do not have enough evidence for most regions," says study leader Wang.

Official statistics are not very meaningful

The scientists had compiled weekly or monthly information on the number of deaths from a total of 74 countries and 266 states or provinces - such as the German federal states - from the pandemic years 2020 and 2021 and from up to eleven years before.

The difference between the number of actual and statistically expected deaths gives the excess mortality.

With the help of statistical models, they also estimated the excess mortality for countries from which no information on the number of deaths was available.