Germs can stay alive in air for up to 48 hours after leaving an infected person or animal. Some germs can live up to a week on surfaces they infect. It is best to keep hands washed, and surfaces sterile to kill germs.
Indefinitely. Though individual germs may die, the collective colonies will live on!
More germs are in the hair than hands!
From dirty things, direct contact(from other people) and others.
A person has more germs in their mouth than on their hands. Saliva has enzymes that prevent germs from forming, while your hands touch things such as doorknobs all day which are infested with germs.
Hand washing is the best way to prevent germs from spreading. Think of how many things you do with your hands ... it's a lot! While cooking food will remove many germs you are touching the food after it has been cooked. If you have not washed your hands before preparing a meal, germs can be transfered to your cutting board, knives, counter, plates and food. By handwashing before cooking, it prevents germs from hands being transfered to mouths and into your body.
up to six hours.
Germs can spread from your hands to surfaces, objects, or other people when you don't wash your hands after using the bathroom. Touching your face, shaking hands, or touching shared items can then transfer those germs to others, potentially causing illness. Washing your hands properly helps prevent this spread of germs.
Billions.
by not washing hands ?
Yes you can. Some germs can survive in the microscopic water droplets that are propelled out of the nose or mouth when we breathe, therefore spreading the germs. How long the germs live is dependant on what the virus is, however.
The hands should be washed before you see each patient, so germs are not passed to any one.