Health Conspiracy Theories Are Widely Believed

10, 2013, file photo shows vials of flu vaccine in Philadelphia. A new survey shows many adults believe in conspiracy theories involving vaccines, cellphones, cancer cures and other medical issues. (Photo: Matt Rourke, AP) SHARE 8520 CONNECT 280 TWEET 170 COMMENTEMAILMORE Nearly half of American adults believe the federal government, corporations or both are involved in at least one conspiracy to cover up health information, a new survey finds. Conspiracy theories on everything from cancer cures to cellphones to vaccines are well known and accepted by sizable segments of the population, according to a research letter published this week in JAMA Internal Medicine . The findings reflect "a very low level of trust" in government and business, especially in pharmaceutical companies, says study co-author Eric Oliver, a professor of political science at the University of Chicago.