Standing over the still body of an intubated 5-year-old boy wearing nothing but a plastic diaper, an Iranian health care worker in a hazmat suit and mask begged the public for just one thing: Stop drinking industrial alcohol over fears about the new coronavirus. The boy, now blind after his parents gave him toxic methanol in the mistaken belief it protects against the virus, is just one of the hundreds of victims of an epidemic inside the pandemic now gripping Iran. Iranian media reports nearly 300 people have been killed and...