La suciedad en los gérmenes

HAGA CLIC EN LA FOTO Y TOME  EL QUIZ,NO SE OLVIDE USAR EL TRADUCTOR!

The Dirt on Germs Is the "5-second rule" safe for food on the floor? How fast do germs fly in a sneeze? The answers may surprise you. Take Quiz ›   •  How to Avoid Getting Sick    •  The Dirtiest Places Kids Will Find   •  Are Tiny Particles Hiding in Your Food