According to the World Health Organization, about 85% of the world's children received a measles vaccine by their first birthday in 2014 - up from 73% in 2000. Between 2000 and 2014, measles vaccination prevented an estimated 17.1 million deaths making it one of the "best buys" in public health.
Individuals who believe in conspiracy theories are often disregarded as 'paranoid' and 'irrational', but social science research indicates that they engage in psychological processes that we all do. The difference lies their unusual distrust of authority.
Conspiracy theories abound! Rumors are whispered, discrepancies in a story are seized upon, and the official version of events is discredited. Then, an alternate explanation is proposed and evidence is gathered to support it.
While there is no formal, generally-accepted understanding of a ‘conspiracy theory’, they are usually considered to be an explanation for an event that is not the most plausible account and which postulates unusually sinister and competent conspirators carrying out the conspiracy. Conspiracy theories are usually based on weak evidence, are self-insulating from fact, and sensationalize the actors or the implications of the event.
Contrary to what we might think, many of the people who follow conspiracies aren’t crazy. They are actually skeptics, they just happen to be selective with their doubt. According to research, individuals that believe in conspiracy theories tend to favor a worldview in which people are prone to misbehave (or behave downright evil) and in which elites exercise omnipotence.