Colder temperatures are arriving in the Northern Hemisphere, and an insidious rise in new coronavirus cases in the U.S. and Europe is underway. For months, health officials have warned against this possibility, and as these trends begin to materialize, countries are weighing whether to impose stricter measures to contain the virus’ spread. “Our worry has been that we would see a fall wave, that we’d see a big resurgence in the fall,” said Justin Lessler, an associate professor of epidemiology at the Johns Hopkins Bloomberg School of Public Health. “And that has really been something I think all of us in the public ... (full story)