Andrew Wakefield, Del Bigtree, and other prominent anti-vaccine advocates unleashed fear and toxic misinformation on Monday, 13 May, at a well-attended symposium in New York’s Rockland County, the location of one of the largest and longest-standing measles outbreaks in the country. Beth Mole writes in ArsTechnica that the event was billed as being a “highly informative night of science and discussion addressing your concerns, fears, and doubts,” but that the speakers made numerous unsubstantiated and egregiously false claims—as usual. In one instance, Brooklyn Orthodox Rabbi William Handler reportedly made the unsubstantiated claim that getting measles, mumps, and chickenpox reduces the risk of cancer, heart disease, and stroke by 60 percent. He did not provide a citation.