A newly discovered bat coronavirus uses the same cell-surface protein to gain entry into human cells as the SARS-CoV-2 virus that causes COVID-19, raising the possibility that it could someday spread to humans, Chinese researchers have reported.
The virus does not enter human cells as readily as SARS-CoV-2 does, the Chinese researchers reported in the journal Cell, noting some of its limitations.
The scientists said that like SARS-CoV-2, the bat virus HKU5-CoV-2 contains a feature known as the furin cleavage site that helps it to enter cells via the ACE2 receptor protein on cell surfaces.
In lab experiments, HKU5-CoV-2 infected human cells with high ACE2 levels in test tubes and in models of human intestines and airways.
In further experiments, the researchers identified monoclonal antibodies and antiviral drugs that target the bat virus.
Bloomberg, which reported on the study earlier on Friday, said the paper identifying the bat virus had moved shares of COVID vaccine makers. Pfizer shares closed up 1.5% on Friday, Moderna climbed 5.3% and Novavax was up about 1% on a down day for the broader market.
Asked about concerns raised by the report of another pandemic resulting from this new virus, Dr. Michael Osterholm, an infectious disease expert at the University of Minnesota, called the reaction to the study "overblown."
He said there is a lot of immunity in the population to similar SARS viruses compared with 2019, which may reduce the pandemic risk.
The study itself noted that the virus has significantly less binding affinity to human ACE2 than SARS-CoV-2, and other suboptimal factors for human adaptation suggest the "risk of emergence in human populations should not be exaggerated."
U.S. Commerce Department bureaus have reportedly issued a blanket ban on the Chinese AI model DeepSeek for use on government-furnished equipment, according to sources and a mass email seen by Reuters.
Chinese state media warned on Tuesday that the United States could suffer significant economic harm as other countries retaliate against its tariffs with “high tariffs” on American goods.
Chinese automakers like BYD are launching fast‑charging EV systems to address one of the biggest hurdles to wider electric vehicle adoption: long charging times. Many drivers worry that their EV batteries could run out during long trips, so rapid recharging is seen as a critical selling point.
In a sweeping regulatory move aimed at curbing misinformation and enhancing transparency, Chinese authorities have announced new rules requiring all AI-generated content to be clearly labeled.
In a groundbreaking study published in Cell on January 18, Chinese researchers have unveiled a novel cancer treatment that ingeniously disguises tumors as pig tissue, triggering the body’s immune system to mount a hyperacute rejection response against the cancer cells.
NASA astronauts Butch Wilmore and Suni Williams completed an unexpectedly long 286-day mission on the ISS, returning to Earth aboard a SpaceX capsule after delays caused by technical issues with Boeing’s Starliner.
British Prime Minister Keir Starmer spoke with Ukrainian President Volodymyr Zelenskyy on Tuesday to discuss the progress made by U.S. President Donald Trump in ceasefire talks with Russia, with both leaders emphasising the importance of a just and lasting peace in Ukraine.
Fresh hostilities erupted in the Russia-Ukraine conflict on Wednesday, with reported air strikes causing infrastructure damage and evacuations despite a recently agreed partial ceasefire.
Putin has paused energy facility strikes, but a full ceasefire remains elusive. The move signals ongoing tensions, with discussions about a wider peace deal set to begin, leaving questions about Ukraine’s role in the negotiations.
U.S. President Donald Trump has released a trove of documents related to the 1963 assassination of John F. Kennedy, fulfilling a campaign promise to provide greater transparency on the historic event.
The inside of a Herculaneum delicate & ancient scroll, unseen for nearly 2,000 years, has been revealed using Artificial Intelligence.
Regarding the Armenia-Azerbaijan process, we cannot forget the years of occupation, and we will not forget them, President Ilham Aliyev said in his speech at the opening ceremony of the 12th Global Baku Forum.
President Donald Trump has vowed to respond to the European Union's counter-tariffs, escalating tensions over the U.S. steel and aluminum duties that have sparked a trade dispute between the two economic powers.
Russian President Vladimir Putin agreed on Tuesday to a proposal by U.S. President Donald Trump that Russia and Ukraine cease attacking each other's energy infrastructure for 30 days, the Kremlin said following a lengthy phone discussion between the leaders.
AstraZeneca is acquiring Belgium-based EsoBiotec for $1 billion to expand its cell therapy capabilities, with the deal set to close in the second quarter.
Over a million displaced people in Myanmar are set to be affected by the World Food Programme’s cuts to food aid worldwide.
Measles cases in the European region surged to a 25-year high in 2024, more than doubling from the previous year, the World Health Organisation (WHO) and UNICEF reported on Thursday, urging immediate action to restore vaccination levels that declined after the COVID-19 pandemic.
Cases in Europe are expected to rise in the coming months, the ECDC warned, citing seasonal trends and low vaccination rates. With over 32,000 cases reported in the past year—mostly in Romania—health officials stress the urgent need for higher immunization to prevent further outbreaks.
Pope Francis had a restful night, the Holy See Press Office said on Wednesday, two days after the Pope's doctors said his prognosis was no longer guarded even if he requires more time in the hospital.
NASA astronauts Butch Wilmore and Suni Williams completed an unexpectedly long 286-day mission on the ISS, returning to Earth aboard a SpaceX capsule after delays caused by technical issues with Boeing’s Starliner.
British Prime Minister Keir Starmer spoke with Ukrainian President Volodymyr Zelenskyy on Tuesday to discuss the progress made by U.S. President Donald Trump in ceasefire talks with Russia, with both leaders emphasising the importance of a just and lasting peace in Ukraine.
Fresh hostilities erupted in the Russia-Ukraine conflict on Wednesday, with reported air strikes causing infrastructure damage and evacuations despite a recently agreed partial ceasefire.
Putin has paused energy facility strikes, but a full ceasefire remains elusive. The move signals ongoing tensions, with discussions about a wider peace deal set to begin, leaving questions about Ukraine’s role in the negotiations.
U.S. President Donald Trump has released a trove of documents related to the 1963 assassination of John F. Kennedy, fulfilling a campaign promise to provide greater transparency on the historic event.
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