When you get two doses of a vaccine, you might assume that it doesn't matter which arm gets the shots. But some evidence suggests that it does.

This program travels to Cambodia, where 1 in 10 people carry hepatitis B, a major cause of liver cancer. Mothers often transmit the virus to their babies during childbirth, and children can pass the infection to each other through even...

ACIP approves rolling back hepatitis B birth dose guidance after delay; experts warn reversal could undo 99% drop in child infections since 1991. (Scripps News)

Full HD Footage : Fly sucking nectar on a flowering fruit.

Medical Syringe, Injection, Macro, Syringes, needle concept

Fly Insect - Stock Video

one method of RPR test for screening of syphilis disease