New York Times: U.S. Becomes More Vulnerable to Tropical Diseases Like Zika
“Tropical diseases — some of them never before seen in the United States — are marching northward as climate change lets mosquitoes and ticks expand their ranges. But that does not mean that epidemics will break out, scientists say. Whether a few cases explode into a full-fledged outbreak depends on a set of factors far more complex than the weather…” (McNeil, 1/4).