Secretary of State Antony Blinken on Thursday offered to share American Covid-19 vaccines with China and called on Beijing to share information about its outbreak that has hospitals inundated across the country.
"We want to see China get this outbreak under control," Mr Blinken said at his end-of-year briefing in the State Department.
"It is very important for all countries, including China, to focus on people getting vaccinated, making testing and treatment available and, importantly, sharing information with the world about what they're experiencing.
"It has implications not just for China, but for the entire world. So we would like to see that happen."
Mr Blinken said that China, which the US considers its top competitor, has not requested any help as it tackles a rise in cases of a new sub-variant of the Omicron strain of Covid-19.
"We're the largest donor of vaccines," Mr Blinken said. "As you know, we're prepared to continue to support people around the world, including in China, with [vaccines] and with other Covid-related health support.
"China's not asked to date for that help."
The surge in cases comes just weeks after Beijing abandoned its tough, “zero-Covid” strategy of mass lockdowns. The restrictions led many Chinese to take to the streets in rare protests.
Contributing to the caseload is a low overall vaccination rate and China's use of domestically developed vaccines that health experts say are not as effective as US medications.
"We're fully prepared to provide assistance to anyone who asks for it, if they think it's useful," said Mr Blinken, who will visit Beijing early next year.
"Any time the virus is spreading or is moving around, there is the possibility that a new variant develops, that variant spreads even further, and it comes and hits us or hits other countries."
He said such a scenario would affect the global economy.
Covid protests in China – in pictures
First Person
Richard Flanagan
Chatto & Windus
Test
Director: S Sashikanth
Cast: Nayanthara, Siddharth, Meera Jasmine, R Madhavan
Star rating: 2/5
Results
Male 51kg Round 1
Dias Karmanov (KAZ) beat Mabrook Rasea (YEM) by points 2-1.
Male 54kg Round 1
Yelaman Sayassatov (KAZ) beat Chen Huang (TPE) TKO Round 1; Huynh Hoang Phi (VIE) beat Fahad Anakkayi (IND) RSC Round 2; Qais Al Jamal (JOR) beat Man Long Ng (MAC) by points 3-0; Ayad Albadr (IRQ) beat Yashar Yazdani (IRI) by points 2-1.
Male 57kg Round 1
Natthawat Suzikong (THA) beat Abdallah Ondash (LBN) by points 3-0; Almaz Sarsembekov (KAZ) beat Ahmed Al Jubainawi (IRQ) by points 2-1; Hamed Almatari (YEM) beat Nasser Al Rugheeb (KUW) by points 3-0; Zakaria El Jamari (UAE) beat Yu Xi Chen (TPE) by points 3-0.
Men 86kg Round 1
Ahmad Bahman (UAE) beat Mohammad Al Khatib (PAL) by points 2-1
Men 63.5kg Round 1
Noureddin Samir (UAE) beat Polash Chakma (BAN) RSC Round 1.
Female 45kg quarter finals
Narges Mohammadpour (IRI) beat Yuen Wai Chan (HKG) by points.
Female 48kg quarter finals
Szi Ki Wong (HKG) beat Dimple Vaishnav (IND) RSC round 2; Thanawan Thongduang (THA) beat Nastaran Soori (IRI) by points; Shabnam Hussain Zada (AFG) beat Tzu Ching Lin (TPE) by points.
Female 57kg quarter finals
Nguyen Thi Nguyet (VIE) beat Anisha Shetty (IND) by points 2-1; Areeya Sahot (THA) beat Dana Al Mayyal (KUW) RSC Round 1; Sara Idriss (LBN) beat Ching Yee Tsang (HKG) by points 3-0.
Zakat definitions
Zakat: an Arabic word meaning ‘to cleanse’ or ‘purification’.
Nisab: the minimum amount that a Muslim must have before being obliged to pay zakat. Traditionally, the nisab threshold was 87.48 grams of gold, or 612.36 grams of silver. The monetary value of the nisab therefore varies by current prices and currencies.
Zakat Al Mal: the ‘cleansing’ of wealth, as one of the five pillars of Islam; a spiritual duty for all Muslims meeting the ‘nisab’ wealth criteria in a lunar year, to pay 2.5 per cent of their wealth in alms to the deserving and needy.
Zakat Al Fitr: a donation to charity given during Ramadan, before Eid Al Fitr, in the form of food. Every adult Muslim who possesses food in excess of the needs of themselves and their family must pay two qadahs (an old measure just over 2 kilograms) of flour, wheat, barley or rice from each person in a household, as a minimum.
Greatest Royal Rumble results
John Cena pinned Triple H in a singles match
Cedric Alexander retained the WWE Cruiserweight title against Kalisto
Matt Hardy and Bray Wyatt win the Raw Tag Team titles against Cesaro and Sheamus
Jeff Hardy retained the United States title against Jinder Mahal
Bludgeon Brothers retain the SmackDown Tag Team titles against the Usos
Seth Rollins retains the Intercontinental title against The Miz, Finn Balor and Samoa Joe
AJ Styles remains WWE World Heavyweight champion after he and Shinsuke Nakamura are both counted out
The Undertaker beats Rusev in a casket match
Brock Lesnar retains the WWE Universal title against Roman Reigns in a steel cage match
Braun Strowman won the 50-man Royal Rumble by eliminating Big Cass last
The candidates
Dr Ayham Ammora, scientist and business executive
Ali Azeem, business leader
Tony Booth, professor of education
Lord Browne, former BP chief executive
Dr Mohamed El-Erian, economist
Professor Wyn Evans, astrophysicist
Dr Mark Mann, scientist
Gina MIller, anti-Brexit campaigner
Lord Smith, former Cabinet minister
Sandi Toksvig, broadcaster
UAE currency: the story behind the money in your pockets
Brief scores:
Toss: Northern Warriors, elected to field first
Bengal Tigers 130-1 (10 ov)
Roy 60 not out, Rutherford 47 not out
Northern Warriors 94-7 (10 ov)
Simmons 44; Yamin 4-4
The specs: 2017 Ford F-150 Raptor
Price, base / as tested Dh220,000 / Dh320,000
Engine 3.5L V6
Transmission 10-speed automatic
Power 421hp @ 6,000rpm
Torque 678Nm @ 3,750rpm
Fuel economy, combined 14.1L / 100km