When I was nine, I had a bad experience while in the hospital with scarlet fever. A nurse restrained me and abruptly poked a needle into my arm, inflicting a pain that felt worse than a bee sting. I avoided having blood taken for the next 20 years, even if it meant risking my health.
It used to be that modern medicine was a thing to be venerated, a doctor's words regarded like golden nectar of wisdom. Now, not so much. Once upon a time vaccinations were seen as miracles in a needle, warding off potentially life-threatening illnesses. In the States, the unvaccinating movement has turned epidemic, with as many as one in 10 parents refusing to vaccinate their children.