What are preventative health care programs such a free flu shots essential for communities

If a flu shot is free them more people are going to be able to get it because for some people who don't have a lot of money getting free shots is the best for them because it could mean the difference from people being able to eat or not

Applying a drug which blocks the absorption of NE into the adrenergic nerve terminal will result in Vasodilation, intestinal contraction, uterine relaxation, pupillary contraction, etc depending on the receptor involved.

Explanation: Interaction of drugs such as phenoxybenzamine can block absorption of NE by Aplha 1 receptor found in smooth muscle, heart, liver, pregnant uterus, male sexual organs and blood vessels with effects including vasodilation, intestinal contraction, uterine relaxation and pupillary contraction.

When this blocker interacts with Alpha 2 receptors found in pancreatic islets, it will inhibit insulin secretion.