Washington Post: With the Zika virus looming just a couple of years after Ebola spread across West Africa, what's long been obvious to experts should now be clear to the rest of us: We live in an era of emerging pathogens.
Between 1940 and 2004, more than 300 infectious diseases either emerged or spread into new places and populations.
On July 29, Florida Gov. Rick Scott called a news conference to alert the public to four cases of Zika in South Florida transmitted locally by mosquitoes. (The number grew last...