The ultimate solution to the novel coronavirus crisis will be a new vaccine or treatment. Until then, an array of medical supplies can help tackle the virus, from hand sanitizer to medical ventilators. Less helpful are the needless regulations, bans and red tape standing in the way of both. Governments can do much to improve the situation and open trade is the obvious place to start. Every country needs access to medical supplies as cheaply as possible. But many governments raise prices by levying needless import tariffs, including on medicines, personal protective equipment and vaccines.