Explain how having a patient temporarily stop taking drugs can help combat the emergence of drug resistant viruses.

they are giving you a small dose of that virus so that your body knows how to fight it off if you get the actual thing.

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.