Across Europe and Asia and especially in the United States, the world has begun to emerge from deep isolation and social distancing designed to help flatten the infection curve. But without a viable vaccine, there is little real chance that this virus can be prevented from re-emerging suddenly and dramatically in the not-so-distant future. A week ago, the World Health Organization said even countries with declining coronavirus rates could still see an "immediate second peak" if they're not careful. Meanwhile, in the U.S., where we recently passed the 100,000 dead mark, videos surfaced over Memorial Day weekend of parties crammed into pools and bars across the country. Add to this mix several sustained days of demonstrations across America, and pandemics experts are bracing for an earlier, rather than later, arrival of a second wave.