China’s top leader, Xi Jinping, said the country would provide two billion Covid-19 vaccine doses to the world this year and would donate $100 million to a global effort to distribute the doses to developing countries, as Beijing attempts to take on a more prominent leadership role in curbing the pandemic.Mr. Xi’s pledges were announced on Thursday in a written message to an international Covid-19 vaccine cooperation forum chaired by the Chinese government. “China will continue to do everything it can to help developing countries cope with the epidemic,” Mr. Xi said.He did not specify whether the …
