Overweight guys will have even more company in a few years. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

itoggle caption Cynthia Goldsmith/CDC

Tokay Geckos, like this one perched on a twig in suburban Quezon City, Philippines, are being hunted and killed to satisfy booming demand for them as an ingredient in alternative medicines. Bullit Marquez/AP hide caption

itoggle caption Bullit Marquez/AP

Wife Deborah Bryant waits as Mississippi Governor-elect Phil Bryant thanks a supporter Tuesday at a victory party. Bryant supported a controversial amendment to the state's constitution on "personhood." Rogelio V. Solis/AP hide caption

itoggle caption Rogelio V. Solis/AP

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