For most of us, we began learning about personal hygiene before we began to talk. We continue to teach our children in the same way, constantly reminding them to cover their mouths when they sneeze and wash their hands after using the restroom. To us, these are basic hygiene practices that contribute to a clean, healthy lifestyle. We understand that these simple routines prevent the spread of germs and keep us from becoming sick.
 
It may seem like common sense to us, but the harsh reality is that millions of people around the world are unaware of the correlation between proper hygiene and good health. In addition to the lack of safe water for drinking and hand washing, they lack the educational opportunities needed to teach them about the simple ways to prevent illness caused by poor hygiene.  To these people, germs and bacteria are invisible killers.