As Portland-area measles numbers hold steady, critics call for Facebook to keep closer watch on anti-vaccination groups


Amid measles outbreaks and the World Health Organization announcing anti-vaxxers pose a global health threat, Facebook is drawing criticism for the proliferation of anti-immunization groups on the social media platform.

The Guardian reports that the groups promote alternatives to vaccines, like high doses of vitamin C to fight communicable diseases, or vitamin A to ward off measles. Some groups have tens of thousands of members and are closed, which means new members must be approved before joining.…

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