Six months of coronavirus: the mysteries scientists are still racing to solve

With government and industry pumping billions into vaccine development, testing and manufacturing, a vaccine could be available in record time, say scientists — it just might not be completely effective. “We might have vaccines in the clinic that are useful in people within 12 or 18 months,” Dave O’Connor, a virologist at the University of Wisconsin–Madison, told Nature in May. “But we’re going to need to improve on them.”