London -- A team of scientists from the world’s leading universities have developed a new all-in-one vaccine that they hope can protect humans against a broad range of coronaviruses, including ones that are yet to emerge. The research published in ‘Nature Nanotechnology’ on Monday is based on a new approach to vaccine development called “proactive vaccinology”, where scientists build a vaccine before the disease-causing pathogen even emerges, which has shown promising results in mice. The study by the Universities of Oxford and Cambridge in the UK and Caltech in the US says the vaccine works by training the body’s immune...