Letter to Rochelle Walensky, Director of the Centers for Disease Control and Prevention - Sen. Johnson Points Out Conflicting CDC Statements on Surveillance of COVID-19 Vaccine Adverse Events

Letter

Dear Director Walensky:

On June 23, 2022, I wrote to you about whether the Centers for Disease Control and Prevention (CDC) performed sufficient surveillance of COVID-19 vaccine adverse events (enclosed).[1] To date, the CDC has failed to provide a response to that letter.

In that letter, I described the CDC and the Food and Drug Administration's Standard Operating Procedures (SOP) document dated January 29, 2021, which declared that the agencies would "perform routine [Vaccine Adverse Event Reporting System (VAERS)] surveillance to identify potential new safety concerns for COVID-19 vaccines."[2] Yet, in response to a Freedom of Information Act (FOIA) request for these surveillance records, CDC failed to provide data it originally claimed it would generate.[3]

As I noted in my letter, the SOP stated that "CDC will perform Proportional Reporting Ratio (PRR) analysis . . . to identify [adverse events] that are disproportionately reported relative to other [adverse events]."[4] The SOP also stated that, "CDC will perform PRR data mining on a weekly basis or as needed."[5] However, in response to the May 9, 2022 FOIA request for these records, CDC wrote, "no PRRs were conducted" and that "data mining is outside of th [sic] agency's purview."[6]

The validity of this assertion has recently been called into question. Although CDC claimed that "no PRRs were conducted," Dr. John Su, a CDC official that works on the Vaccine Safety Team, reportedly told a media outlet that "CDC has been performing PRRs since Feb 2021, and continues to do so to date."[7] CDC's assertion and Dr. Su's statement cannot both be true.

The American people deserve the truth and you have not been providing it. That is why I, together with millions of Americans, have completely lost faith in the CDC and other federal health agencies. It is time to start regaining their confidence and your agency's integrity by coming clean, being transparent, and telling the truth.

Accordingly, please provide an immediate and complete response to my June 23, 2022 letter and the following information by no later than July 29, 2022:

Is Dr. Su's statement that "CDC has been performing PRRs since Feb 2021, and continues to do so to date" true?[8]
If so, why did CDC claim that "no PRRs were conducted" in response to a May 9, 2022 FOIA request?[9]
If Dr. Su's statement is true, please provide all of the PRRs performed since February 2021.
Please make Dr. Su available for an interview with my office to discuss the types of surveillance CDC has performed regarding COVID-19 vaccine adverse events and the data CDC has generated based on its surveillance.
Thank you for your attention to this important matter.

Sincerely,

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