The COVID-19 pandemic that has dressed the world in face masks and fear has so far amassed more 500 million cases, with a “stealth variant” of the virus certain to push that figure even higher.
The grim global tally comes as the highly contagious BA.2 sub-variant of Omicron surges in many countries in Europe and Asia.
The rise of BA.2 has been blamed for recent surges in China as well as record infections in Europe.
It has been called a stealth variant because it is slightly harder to track than others.
South Korea leads the world in the daily average number of new cases, reporting more than 182,000 new infections a day and accounting for one in every four infections globally, according to a Reuters analysis.
New cases are rising in 20 out of more than 240 countries, with territories tracked including Taiwan, Thailand and Bhutan.
Shanghai is fighting China’s worst COVID-19 outbreak since the virus first emerged in Wuhan in late 2019, with almost 25,000 new local cases reported, although the city’s quarantine policy is criticised for separating children from parents and putting asymptomatic cases among those with symptoms.
“Shanghai’s epidemic prevention and control is at the most difficult and most critical stage,” Wu Qianyu, an official with the municipal health commission, told a briefing.
Some European countries are now seeing a slower uptick in new cases, or even a decline, but the region is still reporting over one million cases about every two days, according to the Reuters tally on Thursday.
In Germany, the seven-day average of new infections has fallen and is now at 59 per cent of its previous peak in late March. New cases are also falling in the United Kingdom and Italy, while they are holding steady in France.
Overall, COVID-19 cases in the United States have dropped sharply after hitting record levels in January, but the resurgence of cases in parts of Asia and Europe has raised concerns that another wave could follow in the United States.
The US national public health agency said on Monday the BA.2 sub-variant of Omicron was estimated to account for nearly three of every four coronavirus variants in the country.
The BA.2 variant now makes up about 86 per cent of all sequenced cases globally, according to the World Health Organisation.
It is known to be more transmissible than the BA.1 and BA.1.1 Omicron sub-variants. Evidence so far, though, suggests BA.2 is no more likely to cause severe disease.
Scientists continue to emphasise vaccines are critical for avoiding the devastation the virus can cause.
Roughly 64.8 per cent of the world population has received at least one dose of a COVID vaccine, although only 14.8 per cent of people in low-income countries have received at least one dose, according to figures from Our World in Data.
Although cases have flared in Europe and Asia recently, the United States still has the highest total COVID infections since the start of the pandemic with 80.41 million, followed by India with 43.04 million and Brazil with 30.14 million.
Since 2020, about 37 per cent of the world’s COVID cases have been in Europe, 21 per cent in Asia and 17 per cent in North America.
About 6.5 million people have lost their lives to COVID since the pandemic began. The United States has reported the highest number of deaths, followed by Russia, Brazil and India.
Russia overtook Brazil to have the world’s second-highest death toll from COVID-19, data from Russia’s state statistics service and Reuters calculations showed on Thursday.