Measles cases in the US have hit a 25-year high, with 78 new infections in the past week alone. In a sign of the times, a cruise ship with hundreds of Scientologists on board was quarantined in St Lucia after one passenger was diagnosed with the disease. It’s the sort of news you can expect when parents stop vaccinating their children, which many did from the 1990s onwards for fear that scientists were foisting remedies on them that were more dangerous than the diseases themselves.