Anti-Vaccination Conspiracy Theories Thrive on Amazon (cnn.com)

Amid a growing measles outbreak in the United States, the role of powerful tech companies like YouTube and Facebook in spreading vaccine misinformation is under heavy scrutiny. But there is another massive platform offering spurious anti-vaccination content to people seeking information: Amazon, the world's largest online marketplace. CNN Business: And, asked about it, an Amazon spokesperson only pointed CNN Business to the company's content guidelines page, which says the following: "As a bookseller, we provide our customers with access to a variety of viewpoints, including books that some customers may find objectionable. That said, we reserve the right not to sell certain content, such as pornography or other inappropriate content." A recent search for "vaccine" on Amazon yielded a search page dominated by anti-vaccination content. Of the 18 books and movies listed on the search page, 15 contained anti-vaccination content. The first listing was a sponsored post -- that is, an ad for which Amazon was paid -- for the book "Vaccines on Trial: Truth and Consequences of Mandatory Shots" by Pierre St. Clair, which Amazon was also offering for free to Kindle Unlimited subscribers.
UPDATE (3/2/2019): Amazon "has apparently started removing anti-vaccine documentaries from its Amazon Prime Video streaming service," CNN reports.

However, "a number of anti-vaccine books were still available for purchase on Amazon.com when CNN Business reviewed search results on Friday afternoon, and some were still being offered for free to Kindle Unlimited subscribers."