Home testing uses fewer sensors typically a nose or mouth sensor to detect breathing, a finger clip to measure blood oxygen levels and a chest band to see if your body is trying to breathe.

WSJ: A Test for Sleep Apnea From Your Own Bedroom

You can inhale the droplets directly, or you can pick up the germs from an object such as a telephone or computer keyboard and then transfer them to your eyes, nose or mouth.

CNN: Influenza (flu)

In the procedure, called injection augmentation of the vocal folds, a doctor threads an endoscope through the patient's nose or mouth into the throat, then injects a tiny amount of collagen, fat, hyaluronic acid or a gel filler into the vocal cords to plump them up.

WSJ: How to Take Years Off Your Voice

People may contract swine flu by touching something with viruses on it and then touching their mouth or nose.

CNN: CDC confirms 7 cases of swine flu in humans

First, he says, it looks like cosmic justice is being served, but then the worms turn, literally, and begin to slither out of the frog's mouth or nose.

NPR: Mole-Rats, Ants Making Science Headlines

Is it possible to tell whether the odor is coming from a certain part of the body (nose, mouth, hands, feet, or armpits for example) or from the skin in general?

CNN: What is that metallic body odor?

The idea is to use the scarf to cover your mouth and nose when around others who may be ill, or to sneeze into it so pathogens will be killed instead of lingering to infect others, the site recommends.

WSJ: Keeping Cold and Flu Germs Out

Scientists say GermBana's scarf or any scarf would likely reduce exposure to pathogens if it covers the nose and mouth while around sick people.

WSJ: Keeping Cold and Flu Germs Out

If there are problems, the patient can be fed by mouth, by a tube going into the nose and down to the stomach, or directly into the stomach.

BBC: Princess Margaret: The medical care