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Omicron 'sub******

Scientists are keeping a close watch on a recently-discovered sub-variant of the Omicron version of the COVID-19 virus to determine how its emergence could effect future pandemic spread.。

The initial Omicron variant has become the dominant virus strain in recent months but British health authorities have notably identified hundreds of cases of the latest version, dubbed BA.2, while international data suggest it could spread relatively quickly.。

The UK Health Security Agency (UKHSA) identified more than 400 cases in Britain in the first ten days of this month and has indicated the latest variant has been detected in some 40 other countries, accounting for a majority of most recent cases in some nations including India, Denmark and Sweden.。

The UKHSA indicated on Friday it had designated the BA.2 sub-lineage as a variant under investigation (VUI) as cases of it were on the increase even if, in Britain, the BA.1 lineage currently remains dominant.。

The authority underlined that "there is still uncertainty around the significance of the changes to the viral genome," which required surveillance as, in parallel, cases in recent days showed a sharp rise in BA.2 incidence notably in India and Denmark.。

"What surprised us is the rapidity with which this sub-variant, which has been circulating to a great extent in Asia, has taken hold in Denmark," French epidemiologist Antoine Flahault told AFP.。

Scientists must evaluate how the virus, which has engendered the worst global health crisis in a century, continues to evolve and mutate. Its latest incarnation does not possess the specific mutation used to track and compare BA.1 against Delta, the previously dominant strain.。

BA.2 has yet to be designated a variant of concern – but Flahault says countries have to be alert to the latest development as scientists ramp up surveillance.。

"(France) expected a spike in contaminations in mid-January: It didn't happen and perhaps that is due to this sub-variant, which seems very transmissible but not more virulent" than BA.1, he observed.。

"What interests us is if this (sub-variant) possesses different characteristics" from BA.1 in terms of contagiousness and severity, France's public health agency said Friday.。

To date, only a handful of BA.2 cases have emerged in France – but the country is monitoring developments as they spread across the Channel.。

'Comparable severity'

Flahault, director of the University of Geneva's Institute of Global Health, says the watchword is not panic but "vigilance" as "for now we have the impression (BA.2 case) severity is comparable to" classic variant Omicron cases.。

"But there are numerous questions on the table" and a need to monitor properties of the new variant on the block.。

"Very early observations from India and Denmark suggest there is no dramatic difference in severity compared to BA.1," tweeted Tom Peacock, a virologist at Imperial College, London, adding the latest variant should not call into question the effectiveness of existing vaccines.。

Peacock stressed that "we do not currently have a strong handle on ... how much more transmissibility BA.2 might have over BA.1. However, we can make some guesses/early observations."

He added that "there is likely to be minimal differences in vaccine effectiveness against BA.1 and BA.2. Personally, I'm not sure BA.2 is going to have a substantial impact on the current Omicron wave of the pandemic.。

"Several countries are near, or even past the peak of BA.1 waves. I would be very surprised if BA.2 caused a second wave at this point. Even with slightly higher transmissibility this absolutely is not a Delta-Omicron change and instead is likely to be slower and more subtle," he forecast.。

French Health Minister Olivier Veran said on Thursday that BA.2 did not look as if it would prove a game-changer as variants appear on the scene "fairly regularly". But he indicated he would reserve judgment.。

"What we know for now is that (BA.2) more or less corresponds to the characteristics that we know of Omicron" mark one.。

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Chinese thriller "Fireflies in the Sun" tops domestic box office******

BEIJING, Dec. 19 (Xinhua) -- Domestic thriller film "Fireflies in the Sun" topped the Chinese mainland box office chart on its second day of screening on Saturday, data from the China Movie Data Information Network showed Sunday.。

The movie, which is a sequel to "Sheep Without a Shepherd" released in 2019, depicts the story of a poor family and a desperate father who gives all his efforts to collect money for his son's operation. It earned over 147 million yuan (around 23.1 million U.S. dollars) on Saturday.。

Domestic animation "I am Who I am" ranked second on the box office chart on Saturday, raking in about 22 million yuan on its second day of release. The movie tells the stories of three kids realizing their dream of lion dancing through arduous practice.。

It was followed by domestic adventure "Schemes In Antiques," which pocketed about 10 million yuan. Enditem。

Chelsea beat Watford, Man City win away in Premier League******

LONDON, Dec. 1 (Xinhua) -- Chelsea squeezed past Watford 2-1 to maintain their slender lead at the top of the Premier League on Wednesday night.。

Mason Mount was decisive for the league leaders, scoring the 29th-minute opener and then setting up Hakim Ziyech for the winner after Watford had equalized from Bonaventure's deflected 43rd-minute shot.。

The game was halted for half an hour in the first half for a medical emergency and Watford later confirmed a fan was in a stable condition after suffering a cardiac arrest while in the stands.。

Ruben Dias scored a goal with a left-foot shot to open the scoring for Manchester City away to Aston Villa in the 27th minute and Bernardo Silva made it 2-0 shortly before halftime.。

Ollie Watkins pulled a goal back for Aston Villa early in the second half, but Manchester City inflicted Steven Gerrard's first defeat as Villa coach on the day Man City midfielder Jack Grealish was booed as he faced his former club for the first time since leaving this summer.。

Liverpool got off to a flying start in their 4-1 derby win away to Everton with Jordan Henderson and Mohamed Salah putting them 2-0 up with 19 minutes, with Henderson netting a first-time finish and Salah curing the ball past Everton keeper Jordan Pickford.。

Demarai Gray pulled a goal back for Everton in the 38th minute after a pass from Richarlison, but Salah's second of the game in the 69th minute again put Liverpool two goals clear and Diogo Jota netted Liverpool's fourth in the 79th minute to pile the pressure on former coach Rafael Benitez.。

Neal Maupay's 89th-minute goal saved a point for Brighton on their visit to West Ham, who had taken a fifth minute lead through Tomas Soucek.。

Burnley continue to collect points and extended their unbeaten run to five games with another solid defensive display to earn a 0-0 draw away to Wolves, although they remain in the bottom three.。

Southampton and Leicester City shared four goals with Southampton twice taking the lead through Jan Bednarek and Che Adams only to be pegged back by Jony Evans and James Maddison. Enditem。

回望2020:国内重要军事新闻盘点

1.驻韩美军29日起接种疫苗 韩美将讨论附编韩军接种问题

2.未能按时付息或诱发交叉违约 惠誉下调弘阳地产评级至C

3.张馨予穿黑红配色蓬蓬裙 眼神霸气撩人

4.“中国城市文化综合体”研究课题组成立

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