Chicago attorney Tom Hayward suffered a raging infection after a prostate biopsy. He had to be hospitalized, but has since recovered.

Icoi Johnson for NPR hide caption

itoggle caption Icoi Johnson for NPR

The upper row of images shows blood samples through a traditional microscope. The bottom row shows the same samples imaged on a smartphone.

Courtesy of Sebastian Wachsmann-Hogiu and colleagues hide caption

itoggle caption Courtesy of Sebastian Wachsmann-Hogiu and colleagues

The scientists who sequenced the marijuana plant say they hope the next generation of pot will have stronger therapeutic compounds. JUAN MABROMATA/AFP/Getty Images hide caption

itoggle caption JUAN MABROMATA/AFP/Getty Images

Express Scripts and Medco Health Services say their merger will help control prescription drug costs. But many prescriptions may only be available by mail, which may not sit well with some consumers. Sean Locke/iStockphoto.com hide caption

itoggle caption Sean Locke/iStockphoto.com

A vendor sells betel leaf wrapped in silver foil in Lucknow, India. AJAY KUMAR SINGH/ASSOCIATED PRESS hide caption

itoggle caption AJAY KUMAR SINGH/ASSOCIATED PRESS