A new bat coronavirus, HKU5-CoV-2, discovered by Chinese scientists, is raising global concerns about a potential future pandemic. The virus, found to bind to human ACE2 receptors, the same entry point used by SARS-CoV-2, has sparked fears of animal-to-human transmission. Researchers warn that HKU5-CoV-2 poses a significant spillover risk, though its efficiency in infecting humans is reportedly lower than Covid-19.