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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Houthi attacks target Riyadh amid concerns over Saudi oil supplies, as Iran says it will not reopen the Strait of Hormuz until its conditions are met and U.S. commitments are implemented, parliament speaker Mohammad Bagher Ghalibaf said on Sunday.
The U.S. State Department approved a $2.7 billion military sale to Ukraine for air-defence development upgrades, along with related equipment and services, the department said. Meanwhile, Ukrainian authorities reported at least 10 people had died in Russian attacks over the last 24 hours.
The death toll from an overnight Russian attack on the Kyiv region rose to four, including three children, Kyiv regional authorities said on Sunday. A mother and her two 3-year-old children were killed when a Russian drone strike hit a private home, the emergency service said.
U.S. President Donald Trump said on Friday that additional news organisations could be barred from the White House, hours after announcing bans on CNN, MS NOW and Politico over coverage he described as “fake news”.
Chinese researchers have developed the world’s smallest CT scanner, a portable device designed to produce images of tiny fossils and archaeological relics.
Here's your AnewZ Daily Brief for 17 September 2026. These are the top five stories making headlines in the field of health.
Doctors in St. Louis have successfully separated Ethiopian two-year-old twin girls who were born joined at the head after a months-long series of complex operations culminating in a nearly 25-hour final procedure, doctors said on Wednesday.
Tobacco use may significantly reduce fertility in both men and women, according to a new World Health Organization (WHO) publication that highlights growing evidence linking smoking and exposure to second-hand smoke with reproductive health problems.
A record-breaking heatwave that swept across western Europe in late June has been linked to more than 10,000 excess deaths, according to newly released mortality data, highlighting the growing human toll of extreme temperatures across the continent.
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