Ian Brighthope's latest article tells the story of Patricia Leidl, a former World Health Organization communications director whose testimony before Canada's Allison Inquiry raises an important question that should survive every argument about COVID-19 vaccines: what obligation does medicine have when a patient becomes seriously ill soon after receiving a medical intervention?
Leidl is an unusual witness because she was hardly an outsider to the public-health establishment. She had worked as a director of communications at the WHO in its HIV program, worked with USAID and advised the United Nations Population Fund. While working with the WHO's infectious-disease and vaccine department, she prepared the first draft of its 2002 publication The State of the World's Vaccines. According to her testimony, she understood vaccines and public-health communications from inside the institutions responsible for them.
Before her second COVID-19 vaccination, Leidl described herself as exceptionally fit and active. She regularly cycled and hiked and had recently completed a demanding 26-kilometre hike on Vancouver Island. Her first vaccination produced no significant problem, but approximately a week after her second dose she got out of bed and collapsed. Her heart was racing, her extremities and face were swollen, and she was suffering severe pain, migraine and extreme sensitivity to light. She was taken to an emergency department and was reportedly diagnosed with postural orthostatic tachycardia syndrome, or POTS.
That was the beginning rather than the end of her illness. Leidl testified that she subsequently experienced extensive skin eruptions, severe swelling and weight gain, post-menopausal bleeding, breast swelling, Achilles tendinopathy, tinnitus, major hearing loss in one ear, cognitive problems and continuing exhaustion and pain. The woman who had recently walked 26 kilometres said she reached a point where walking a single block could become extremely difficult.
Five years later, she says she has spent approximately $250,000 attempting to recover, including expenditure on physiotherapy, pain treatment and numerous other therapies. Her mobility has improved, but she reports continuing physical and cognitive problems. Her account was delivered publicly at the Allison Inquiry in Ottawa on September 10. Contemporary reporting confirms that she described the onset as seven days after her second vaccination in June 2021 and says she regards her life as having been effectively destroyed by what followed.
There are two different questions here, and they should not be confused.
The first is whether vaccination caused every illness Leidl subsequently experienced. Her testimony alone cannot establish that. Temporal sequence is not proof of causation, multiple conditions can arise independently, and an individual case cannot logically establish the frequency of an adverse reaction across a population. However, it is highly suggestive.
The second question is whether her sudden and severe illness following vaccination warranted serious investigation as a possible adverse event.
On that question the standard should be much easier to satisfy. Indeed, Canada's current immunisation guidance says that any serious adverse event resulting in such things as hospitalisation, permanent disability or death, or any unexpected adverse event temporally associated with vaccination, should generally be reported. The same guidance emphasises that continuing pharmacovigilance is particularly important because very rare adverse reactions may be too uncommon to emerge in clinical trials. That principle should apply regardless of how rare vaccine injuries ultimately prove to be.
Imagine, for the sake of argument, that a particular serious vaccine reaction occurred only once in ten million vaccinations. The rarity would be reassuring from the standpoint of population risk. It would be of absolutely no reassurance to the one person who experienced it.
Nor would rarity justify a doctor saying that because the reaction is statistically improbable it therefore did not occur. That confuses population statistics with individual diagnosis.
The point is especially important because serious adverse reactions to COVID-19 vaccines are not merely hypothetical. Canadian authorities recognise rare myocarditis and pericarditis following mRNA and protein-based COVID vaccines, particularly in certain populations, and very rare thrombosis with thrombocytopenia, Guillain-Barré syndrome and capillary leak syndrome associated with some of the viral-vector vaccines formerly used in Canada.
None of those recognised conditions proves that Leidl's particular collection of symptoms was vaccine-caused. They establish the more modest but important principle that vaccination and serious adverse reaction are not mutually exclusive categories. That should always have been obvious.
No effective medical intervention is literally risk-free. The proper scientific question is how large the risk is, which adverse events are causally related, which groups are particularly susceptible, how those reactions should be diagnosed and treated, and how those risks compare with the benefits of the intervention.
Leidl's most disturbing allegation is therefore not simply that she became ill. It concerns what happened when she sought help. She says clinicians repeatedly suggested that she had long COVID, although according to her testimony she had not contracted COVID-19 at that stage and did not do so until roughly two years later. At another point, she says, her symptoms were treated as possibly psychological. She describes attending an emergency department covered in extensive boils and receiving what she regarded as dismissive treatment and an inadequate response.
These are her allegations and should be described as such. We do not have the complete clinical records or the responses of every physician involved, and it would be unfair to reconstruct individual medical decisions from one side of the story.
But the broader principle requires no such judgment. When a previously healthy patient develops an extraordinary collection of symptoms shortly after a medical intervention, the appropriate response is neither "the intervention definitely caused this" nor "the intervention could not possibly have caused this." It is: investigate it.
There is an additional irony in Leidl's case. She says that some of her acquaintances and professional colleagues distanced themselves from her because she attributed her illness to vaccination. A woman who had spent decades working in international public health and human rights says that merely identifying herself as vaccine-injured resulted in her being treated as though she had joined an ideological camp.
That is exactly what should never happen to medicine. A symptom is not Left-wing or Right-wing. POTS does not vote. A suspected adverse reaction is not misinformation merely because acknowledging its possibility may complicate a public-health message.
If an unusual reaction is dismissed because officials fear that acknowledging it might encourage vaccine hesitancy, the scientific process has been reversed. Pharmacovigilance exists precisely because unexpected observations sometimes force medicine to modify what it previously believed about a treatment.
Canada's own experience illustrates the point. Safety signals concerning thrombosis with thrombocytopenia and myocarditis/pericarditis were detected during the vaccination campaign, investigated and incorporated into safety information. Health Canada subsequently updated product information as evidence emerged. That is how the system is supposed to work.
It is also why the debate over Leidl should not depend upon proving that COVID-19 vaccines caused vast numbers of injuries. Brighthope makes much broader claims about the scale of vaccine injury, but Leidl's case does not require them.
Suppose serious COVID-vaccine injury was one of the rarest medical events imaginable. Suppose the vaccination program prevented vastly more illness than it caused. Suppose every favourable population-level claim made for the vaccines were granted. Leidl still deserved to be taken seriously.
Population benefit does not extinguish individual harm. A treatment can be beneficial overall and harmful to a particular recipient. Medicine has never required choosing between those propositions.
Indeed, a health system confident in the safety of its interventions should be particularly willing to investigate suspected adverse events. If most prove coincidental, careful investigation will establish that. If a small number reveal genuine safety signals, identifying them makes medicine safer. Dismissal accomplishes neither purpose.
There is also an ethical dimension when governments strongly encouraged vaccination and, in many settings, attached employment, travel and participation consequences to vaccination status. Leidl testified that she accepted vaccination partly because she needed to travel to Europe for prospective employment. Whatever one's view of those policies, greater pressure to undergo an intervention strengthens rather than weakens the moral obligation to recognise, investigate and assist the small number of people who may suffer serious adverse consequences. That is the lasting importance of her testimony.
https://ianbrighthope.substack.com/p/former-who-director-breaks-her-silence