President Tsai Ing-wen got vaccinated with Taiwan’s first domestically developed Covid-19 vaccine on Monday, giving her personal stamp of approval as the island begins rolling out the shot whose approval critics say has been rushed. The health ministry last month approved the emergency use of Taiwan's Medigen Vaccine Biologics Corp’s Covid-19 vaccine, part of a broader plan for inoculation self-sufficiency as delays in vaccine deliveries from global drug companies have affected Taiwan and many other countries. Tsai, who had held off using vaccines from Moderna or AstraZeneca, the current mainstay of Taiwan’s vaccination program, received her Medigen shot at a...