Scientists create universal coronavirus vaccine for future strains

Scientists have developed a universal coronavirus vaccine that targets a broad range of coronaviruses, including unknown strains. The vaccine, tested in mice, uses nanoparticles to train the immune system. Researchers aim for "proactive vaccinology" to prepare for potential pandemics. The vaccine, detailed in Nature Nanotechnology, can be produced in existing facilities. If proven safe and effective in humans, it could serve as a Covid booster and protect against other coronaviruses.