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."
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China has again warned its citizens against travelling to Iran due to ongoing security concerns, despite a ceasefire between Tehran and Israel.
China's Ministry of Commerce (MOFCOM) announced Monday it will extend anti-dumping duties on specific stainless steel imports from the European Union, United Kingdom, South Korea, and Indonesia for an additional five years starting Tuesday, 1 July.
A U.S. federal judge on Tuesday rejected Huawei Technologies Co Ltd's request to dismiss the majority of charges in a sweeping indictment, allowing the Chinese telecoms giant to face trial over allegations of trade secret theft, bank fraud, and sanctions violations.
The U.S. Justice Department announced charges against two Chinese citizens accused of spying inside the U.S. on behalf of Beijing.
The U.S. economy faces a 40% risk of recession in the second half of 2025, JP Morgan analysts said on Wednesday, citing rising tariffs and stagflation concerns.
A magnitude 5.5 earthquake struck off Japan’s Tokara Islands on Wednesday, with no tsunami warning issued but residents advised to remain vigilant.
China has ramped up efforts to protect communities impacted by flood control measures, introducing stronger compensation policies and direct aid from the central government.
The European Commission is set to propose allowing carbon credits from other countries to count towards the EU’s 2040 climate target, according to a leaked internal document.
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France will impose its toughest outdoor smoking restrictions starting Monday, banning smoking at beaches, parks, playgrounds, and bus stops.
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Singapore has launched its largest-ever study on paediatric food allergies, aiming to better understand and address the growing burden of allergic reactions among children.
Bill Gates says his foundation will not compensate for funding shortfalls caused by U.S. and UK aid cuts to global vaccination efforts, warning of rising child mortality as a result.
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