Wisconsin GOP Sen. Ron Johnson condemned Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky for failing to substantively respond to inquiries into the agency’s monitoring of adverse COVID-19 vaccine effects.
Johnson initially wrote to Walensky in both June and July asking as to the agency’s methods for monitoring vaccine side effects. He received a reply on Sept. 2 in which Walensky largely discussed the use of the data mining method the CDC employed. She said the CDC used Empirical Bayesian (EB) data mining as its primary method and only used the proportional reporting ratio (PRR) to verify EB results.
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