Many of us are following the headlines about the Zika virus with mounting alarm.
Before that, it was Ebola. Think back to October 2014, when a New Jersey nurse was quarantined after returning home from caring for Ebola patients in West Africa.
She later sued the state, by the way.
That same month, a Liberian man named Thomas Duncan left his home to visit Dallas, Texas. He left Liberia healthy. Two weeks later he was dead of Ebola, the first person diagnosed with the deadly disease in the U.S.
In 1885 people were equally terrified of rabies.