The World Health Organization warned in its 2007 report that infectious diseases are emerging at a rate that has not been seen before. Since the 1970s, about 40 infectious diseases have been discovered, including SARS, MERS, Ebola, chikungunya, avian flu, swine flu and, most recently, Zika.
Driving distance from Boston, MA to Philadelphia, PA. The total driving distance from Boston, MA to Philadelphia, PA is 306 miles or 492 kilometers. Your trip begins in Boston, Massachusetts. It ends in Philadelphia, Pennsylvania.
The calculation of flight time is based on the straight line flight distance from Denver, CO to Philadelphia, PA (as the crow flies), which is about 1,578 miles or 2â540 kilometers. Your trip begins in Denver, Colorado. It ends in Philadelphia, Pennsylvania.