After remaining fairly constant through the summer, novel coronavirus infections and deaths in the United States are likely to begin climbing again in September, marking the start of a second wave of the epidemic, according to a model from the University of Washington that has been widely cited but also criticized. Sandi Doughton writes in the Seattle Timesthat the UW’s Institute for Health Metrics and Evaluation (IHME) projects the national death toll from COVID-19 could reach nearly 170,000 by Oct. 1, with an uncertainty range of 133,201 to 290,222. That’s 57,000 more deaths in the coming months, in addition to the approximately 113,000 Americans killed by the virus so far.