By Maryanne Demasi at Brownstone dot org.
For the first time since the pandemic began, a federal vaccine advisory body in the United States has acknowledged a major blind spot in the country's vaccine safety system.
A leaked report prepared for the Advisory Committee on Immunisation Practices (ACIP) finds that many people with long-term illness after Covid-19 vaccination have gone largely unrecognised by the medical system meant to monitor vaccine safety.
The document was written by the Covid-19 vaccine workgroup advising ACIP, chaired by MIT professor Retsef Levi.
The workgroup writes that reforms are "fundamental and necessary to regain public trust in vaccination programs that have moral and bioethical obligations for solidarity, justice and equity."
The document, obtained exclusively by MD Reports, arrives amid political sensitivities surrounding the issue. ACIP's scheduled February meeting was abruptly cancelled without a public explanation.
A senior CDC researcher familiar with the situation, speaking on condition of anonymity, suggested the report may have been politically delicate.
"Obviously there were some politics involved when the February ACIP meeting was postponed," the researcher told MD Reports. "But I think the workgroup itself generally supported the document."
The researcher added that they "wholeheartedly support" the policy document, noting that it is "long overdue to acknowledge and treat the vaccine-injured."
The report has not yet been publicly released and is expected to be discussed at ACIP's upcoming meeting on March 18–19. Levi declined to comment.
The system's blind spot
The report focuses on what it calls Post-Acute Covid-19 Vaccination Syndrome, or PACVS.
The term refers to symptoms that persist for at least 12 weeks after vaccination and cannot be explained by another medical condition.
Patients with PACVS often present with complex, multi-system illness. Symptoms may involve the nervous system, the cardiovascular system, the immune system, the endocrine system, and the autonomic nervous system.
The clinical picture varies widely. Some people develop severe fatigue, cognitive impairment, neuropathy, or dysautonomia.
Others experience chest pain, immune disturbances, or endocrine problems. Symptoms often fluctuate and evolve over time, making early diagnosis difficult.
Clinical features frequently overlap with long Covid — including fatigue, cognitive impairment, dysautonomia, neuropathy, chest pain, and immune disturbances.
Yet many patients fall into a diagnostic no-man's-land, particularly in the early stages of illness.
Some eventually meet criteria for recognised conditions such as postural orthostatic tachycardia syndrome (POTS), small fibre neuropathy, or ME/CFS.
But even then, the path to recognition can take years.
The workgroup argues that these difficulties do not necessarily reflect the absence of disease. Instead, they reflect the limits of the systems used to detect and classify illness.
The surveillance gap
A major problem identified in the report is the limitations of existing surveillance systems.
The United States has multiple systems designed to detect vaccine injuries, but most were built to capture acute reactions — events that occur within days or weeks of vaccination.
Persistent, evolving illness does not fit easily into those frameworks.
In practice, vaccine injuries are mainly tracked through broad diagnostic codes and passive reporting systems such as the Vaccine Adverse Event Reporting System (VAERS).
These systems depend heavily on clinicians recognising a problem and reporting it.
But when symptoms develop gradually, involve multiple organs, or resemble other conditions, they are far harder to classify.
The report notes that there is currently no specific diagnostic code for chronic post-vaccination illness. There are also no standard diagnostic guidelines and no coordinated system for long-term follow-up.
The result is a fragmented landscape.
Doctors struggle to d...