| People can simply have different perspectives on things. Measels has mortality rate of around 0.1% while small pox has a mortality rate of around 30%. So the individual risk from measels is relatively low leaving plenty of room for individual choice. There's less room for the same argument with small pox. In fact small pox is where the term vaccine comes from - it was observed that milk maids weren't getting smallpox, which led to the discovery that infection with cow pox (which is relatively harmless) provided immunity to small pox - hence 'vacca cine', vacca = cow in latin. But there's a long history of people trying to self vaccinate with all sorts of things against small pox including using scrapings off somebody's small pox wounds to hopefully give oneself a light infection. Needless to say that came with well understood side effects up to and including full-on small pox infection. But when the death rate is 30%, people were willing to do some crazy things, because the risk:reward was seen as worth it. --- FWIW I did ultimately decide to vaccinate my children against measels, but it was not an easy decision, because it is in general not that risky a disease whose mortality rate had already precipitously declined (from 13 per 100k to 0.19 per 100k) [1] before a vaccine was first introduced in 1963. Obviously I think it's the right decision, but I also wouldn't really fault anybody for going the other direction either. [1] - https://ourworldindata.org/grapher/measles-cases-and-death-r... |