U.S. health officials are aware of the risk of myocarditis of the COVID-19 vaccine, but downplayed the focus and delayed notification of public access to jabs – a new Senate report released Wednesday by Senator Ron Johnson.
Johnson (R-Wis, chairman of the Senate Permanent Subcommittee, called the Department of Health and Human Services (HHS) earlier this year to obtain records related to Covid-19-19 vaccine safety data and communications about the pandemic.
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The interim report spanning 55 pages, obtained and reviewed by Fox News Digital, reveals that Biden administration officials have “retained important health information from the subcommittee and the public.”
Johnson has sent more than 70 supervisory letters since 2021, saying “either completely ignored or inadequately resolved.”
The report highlights Johnson’s record of obtaining subpoena from a new, Trump administration-led Health Department. Specifically, the report focuses on HHS awareness and response to myocarditis cases, a type of cardiac inflammation, to be vaccinated with COVID-19.
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Johnson’s report said the 2473 pages of record he obtained “contains evidence of the Biden administration’s efforts to downplay and delay warning the public about the risk of myocarditis associated with the mRNA covid-19 vaccine.”
The report points to the May 2021 record, in which HHS health officials discussed whether to issue a formal warning about myocarditis.
According to the report, formal warnings about myocarditis will initially be distributed nationwide as health alert network information, which is the CDC’s “primary approach to sharing clearance information about public health emergencies with public information officials; federal, territorial, territorial, tribal, tribal, tribal and public health physician clinicians;

Senator Ron Johnson of Wisconsin and other Senate Republicans have slammed the Centers for Disease Control and Prevention’s new mask recommendations. (Getty Image)
However, Johnson’s report said health officials from the CDC and the Food and Drug Administration (FDA) “finally decided not to publish the formal han, but instead posted “clinical precautions” about myocarditis on the CDC website.”
“Based on the subcommittee’s records of subpoena so far and public FOIA documents, the interim report will focus on the records and present a timeline that shows that our health officials are aware of the risk of myocarditis; these officials downplay health issues; and the U.S. health agencies delay the risk of adverse events to the public.”
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The report also stressed that the Israeli Ministry of Health notified officials at the CDC in February 2021 that there was a “large myocarditis report, especially young people following the Pfizer vaccine.”
The report also highlights documents in April 2021 by CDC officials discussing the “safety signal” of MRNA vaccines based on data from the Defense Department and Israeli countries, but “still no immediate steps have been taken to warn the public.”
Documents obtained by Johnson also show that CDC officials communicated with Moderna and Pfizer representatives about risks.

In this image taken on March 19, 2021, a vial with a label of Pfizer reproductive technology and the modern coronavirus disease (Covid-19) vaccine can be seen. (Reuters/dado ruvic/illustration/file photos)
Johnson also received a “draft minutes of late May 2021” exchanged between U.S. public health officials, which included: ‘Vaers’ signals for musculitis now?
“Vaers” is the acronym for the vaccine adverse event reporting system.
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“Instead of providing public and healthcare providers with direct and transparent information about the risk of myocarditis after mRNA COVID-19 vaccination, wait until late June 2021 to announce the “recommended myocarditis and pericarcartosis corecartists of Corecarditis of Corecarditis,” “Label changes for Moderna and Pfizer COVID-19 vaccines.” “While CDC and FDA officials are well aware of the risk of myocarditis following COVID-19 vaccination, the Biden administration’s choice to withhold security issues for several months sends a formal warning to the public, thus endangering the health of young Americans. ”
The Biden administration’s decision “downplays the health risks of the 199 vaccine and delays warning the public about the adverse events associated with the mRNA vaccine, which harms the public’s health.”
According to the report, as of April 25, 2025, VAERS reported 38,607 deaths, with more than 1.6 million “adverse events related to the management of COVID-19”.

(Senator Ron Johnson said the Biden administration has retained important health information about the COVID-19 vaccine.)
The report said 25% of the 25% of the deaths that occurred on day 0, 1 or 2 after the injection occurred, while “the 2,663 deaths reported to VAERS were reported in flu vaccine-related deaths within 35 years.”
“No other reports of adverse events related to any other drug or vaccine are even close to these statistics,” the report noted. “However, those who oversee the development and distribution of Covid-19 vaccines continue to insist that it is safe and effective without providing data to prove its claims.”
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Johnson’s report requires the Biden administration to “not immediately warn the public about the “full scope” of all adverse events in the COVID-19-19 vaccine and must be fully exposed.”
“The American people use their tax dollars to fund federal health departments and agencies,” the report states. “The information developed by these departments and agencies belongs to the American people and should be fully and transparently provided.”
The report notes that because “the barriers were removed and more documents were hidden and kept for years of available documents, the permanent subcommittee of investigation will provide transparency and allow the U.S. public to see what their rights are.”