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Secret Letter to CDC: Top Epidemiologist Suggests Agency Misrepresented Scientific Data to Support Mask Narrative

Megan Redshaw
By Megan Redshaw, J.D.

Documents recently obtained from the National Institutes of Health suggest public health officials used inaccurate information and misrepresented medical research to advance their policy objective that masks prevent severe COVID-19 and virus transmission—despite opposing scientific evidence received from experts.

In a recently obtained letter (pdf) sent in November 2021 to the Centers for Disease Control and Prevention (CDC), top epidemiologist Michael Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, and seven colleagues informed the agency it was promoting flawed data and excluding data that did not reinforce their narrative.

The letter warned the agency that misrepresenting data on trusted websites such as the CDC and the COVID-19 Real-Time Learning Network—jointly created by the CDC and Infectious Diseases Society of America (IDSA)—would “damage the credibility of science,” endanger public trust by “misrepresenting the evidence,” and give the public “false expectations” masking would protect them from the SARS-CoV-2 virus that causes COVID-19.

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