Schoolchildren in large parts of France were ordered Monday to again wear face masks in class, less than a month after being allowed to remove them, as the country tries to tamp down a surge in Covid cases. Primary schools in 40 of France's 101 departments or administrative areas, which had been mask-free for weeks, are affected by the order, which comes a day before President Emmanuel Macron addresses the nation about the health crisis. Under the government's Covid protocol, primary school pupils have to wear masks when the incidence rate rises above 50 new infections per 100,000 inhabitants over five consecutive days. With nearly 75 percent of the population inoculated against the coronavirus, France is one of Europe's vaccine leaders. But the pace of new vaccinations has slowed since the summer, when millions rushed to get shots after the introduction of a Covid pass to enter bars, restaurants, gyms and other entertainment and sporting venues. The latest government edict brings to 61 the number of departments where schoolchildren have to cover their noses and mouths. They include the areas surrounding Paris as well as the southern city of Marseille. In secondary schools,...