The strange thing is this: we can discuss the toxins from tetanus or diphtheria without controversy. The moment we raise the spike protein as a possible driver of disease, the conversation collapses.
That is the contradiction I keep returning to.
In medicine, we are comfortable separating a microbe from the specific product that causes harm. Tetanus is feared not for the bacterium but for the toxin. Diphtheria works the same way: certain strains produce a toxin that drives the pathology. With streptococcus and staphylococcus, we accept that specific proteins or immune-triggering products generate the clinical picture.
With SARS-CoV-2, the spike protein becomes almost untouchable. It should not be. The virus has many components — membrane proteins, envelope proteins, nucleocapsid, ORFs, NSPs. But when I ask which component most consistently links infection, immune activation, vascular disturbance, neurological symptoms, and the vaccine response, I keep returning to spike.
That does not mean every problem is caused by spike, or that every person with persistent symptoms harbors persistent spike. It means spike must be taken seriously as a biological actor.
Why Spike Is Different
Spike is not a decorative feature on the outside of the virus. It is the structure that allows entry into cells. It interacts with ACE2, but that is only part of the story. Over time we have learned that spike can engage multiple proteins and receptors across different tissues.
I often describe it as Velcro. The metaphor is imperfect, but it captures something important: spike appears to bind to many biological surfaces. Once it sits in the wrong compartment, or once the immune system reacts to it in the wrong way, the consequences may not be simple.
This is why I started thinking beyond generic “spike detox” language. I understand why the phrase makes people uncomfortable. It sounds imprecise. It sounds like marketing. But underneath the imperfect language sits a serious question: if spike protein or spike-related immune activation persists in some individuals, how do we help the body resolve it?
That question cannot be reduced to one supplement, one binder, or one protocol. For some people, the problem may be relatively straightforward. For others, it may involve immune priming, macrophage activation, neurological inflammation, vascular disturbance, and gut-driven inflammatory amplification all at once.
That is why this has taken me so long to put together.
The Case That Made the Pattern Clearer
I recently reviewed the public timeline of Kenny Carmody, who has shared his experience openly on Twitter/X. This is not a formal case report. It has not been clinically verified. I am not presenting it as proof. I am presenting a pattern that deserves careful thought.
Before July 2021, he described himself as extremely fit — travelling extensively, working long hours, very low body fat, thousands of steps daily, running, surfing, functioning at a high level. After a single Moderna vaccination in July 2021, he reports an immediate sense that something was wrong. Within three days he describes severe burning pain through his joints, muscles, and organs, a sense that his nervous system was shutting down, and a deterioration severe enough to require hospital-level care.
This is where many people stop listening, because they do not want to consider a vaccine-triggered injury. As a clinician, I cannot ignore timing. If I give someone penicillin and they develop a widespread rash shortly afterwards, I cannot prove with absolute certainty that penicillin caused it, but the temporal connection matters. Medicine works with patterns, probabilities, and the exclusion of alternatives.
In this case, the day-three escalation is one of the most important features. It suggests this was not a slow-developing antibody process. Something in the immune system appears to have been ready to react.
The Question of Immune Priming
When I see a severe reaction within days, I ask whether the immune system was already primed.
By that I mean an existing inflammatory ember. The person may appear healthy. They may function at a high level. But beneath the surface there may be prior immune memory, an earlier infection, a neurological inflammatory event, a gut inflammatory process, or an autoimmune tendency that never fully resolved.
Then spike exposure acts like petrol on those embers.
That is the part many people miss. Good function does not mean absence of immune vulnerability. When I take a detailed history, I often find earlier clues: a prior infection, a neurological episode, gut disturbance, unexplained fatigue, immune sensitivity, or a recovery that was never quite complete.
In Kenny’s case, the later symptoms are strikingly neurological and neuromuscular: stroke-like spasms, dysphagia, breathing difficulty, partial diaphragm involvement, severe fatigue, and long-term disability. He has described being around 80% bedridden years later. That is not a minor adverse effect. It is a profound alteration in function.
Contactin-1 and the Neurological Clue
One reason this case made me pause was the neuromuscular pattern. I began asking what spike might bind to that could plausibly connect to neurological dysfunction.
That led me to contactin-1.
Contactin-1 is a neuronal cell adhesion protein involved in how nerve cells interact and communicate. A recent preprint described the structure of SARS-CoV-2 spike in complex with contactin-1. That stood out immediately, because it creates a possible bridge between spike biology and neuromuscular symptoms.
Krepel, Sabrina T., et al. "Structure of SARS-CoV-2 spike in complex with its co-receptor the neuronal cell adhesion protein contactin 1." bioRxiv (2026): 2026-03.
I am not saying this proves contactin-1 caused his illness. That would be too strong. But it gives us a plausible direction of thought.
If spike binds to a neuronal protein, and the immune system has already been primed against that tissue environment, spike may not simply be seen as a foreign viral protein. It may be presented in a context that drags nearby human proteins into the immune response. That is one route by which a post-trigger autoimmune or neuroimmune process could begin.
The speed of his reaction suggests prior readiness. The chronicity suggests failed resolution. The neurological dominance suggests the immune system is interacting with nervous-system structures or their supporting immune environment.
Why Antibodies Alone Do Not Explain Everything
One reported feature in this case is a very high spike antibody level years after a single vaccine dose. That is important, but I want to be careful. A high antibody level does not automatically prove persistent spike protein production. It may suggest ongoing immune stimulation, but there are other possibilities: durable plasma-cell activity, missed infection, immune dysregulation, assay variation, or repeated exposure.
What matters more is the pattern as a whole.
If apheresis temporarily reduces antibody levels but the symptoms and antibodies return, the immune system is actively maintaining the response. That tells me removing circulating antibodies is not enough. The problem sits deeper: in tissue immune activation, macrophage behavior, endothelial signaling, autoantibody production, or neurological inflammation.
This is why some cases do not respond to simple approaches. The issue is no longer just the presence of spike. It is the immune system’s memory of spike, the way macrophages have been trained, and the tissues in which inflammation has become self-sustaining.
The Macrophage at the Centre
The more I have studied long COVID and post-spike syndromes, the more I keep returning to the macrophage.
Macrophages are not simply inflammatory cells. They decide whether inflammation escalates or resolves. They clear debris, present antigens, interact with T cells, and influence tissue repair. They sit at the boundary between immune defense and chronic inflammation.
If macrophages become persistently activated, or epigenetically trained into a heightened inflammatory state, they can keep the system switched on long after the original trigger has passed.
This is where the chronic pattern begins to make sense. A person may no longer have active infection. They may have no ongoing vaccine mRNA expression. But the immune system can remain locked in a response pattern. That is very different from saying spike is still floating around everywhere. It is subtler — about immune memory, antigen handling, tissue inflammation, and failed resolution.
The Choroid Plexus and Brainstem Question
The part of Kenny’s case that concerns me most is the combination of dysphagia, breathing difficulty, stroke-like spasms, and severe fatigue. These symptoms force me to think about the brainstem and the immune structures around it.
One area I keep returning to is the choroid plexus, particularly around the fourth ventricle. It produces cerebrospinal fluid and sits close to critical brainstem regions involved in autonomic and respiratory regulation. Chronic immune activation there could theoretically influence swallowing, breathing, autonomic stability, fatigue, and neurological signaling.
I am not claiming this is proven in his case. I am saying the pattern points us there.
This is where standard imaging may not give the answer. A person can have profound neuroimmune dysfunction without an obvious structural lesion. That does not make the symptoms imaginary. It means we may be looking at immune signaling, microglial activation, barrier dysfunction, or inflammatory traffic rather than a mass, stroke, or demyelinating plaque.
Why I Still Start with the Gut
Even when the symptoms appear neurological, I still ask about the gut.
That may seem strange, but the gut is one of the largest immune organs in the body. It is where microbial products, food antigens, barrier function, immune tolerance, and inflammatory signaling all converge. If the gut remains inflamed, it can keep feeding the macrophage system, keeping the body in a state where every trigger produces a disproportionate response.
That does not mean every case is gut-driven. In Kenny’s public timeline, gut symptoms are not the dominant feature, so I would not force that interpretation. But clinically, I still want to exclude gut inflammation as a continuing amplifier.
In simpler cases, addressing gut immune disturbance can produce meaningful improvement. In cases like this, gut work alone is not enough. There may be entrenched neurological, autoimmune, vascular, and macrophage-driven loops that require a far more careful strategy.
The Broader Lesson
This case sits at the extreme end of complexity. Most people struggling after COVID infection or spike exposure will not look like this. Many will have fatigue, brain fog, dysautonomia, gut symptoms, headaches, or inflammatory flares without profound neuromuscular disability.
But the extreme cases teach us something important.
They show that spike exposure can become clinically significant in vulnerable individuals. They show that immune priming matters. They show that persistent symptoms may not be resolved by suppressing inflammation or removing antibodies. They show that the macrophage, the nervous system, the vascular system, the gut, and the immune memory response may all be part of the same unresolved process.
This is why we need a more serious framework. Not a slogan. Not a culture-war argument. Not a simplistic detox claim. A framework.
We need to ask what triggered the response, which tissue system became dominant, which immune loop failed to resolve, and what must be addressed first to reduce the inflammatory burden.
Where I Am Now
The strategy is not simply “remove spike.” It is to deal with the embers, reduce the inflammatory environment, support immune resolution, and then consider how best to help the body clear what may be sustaining the response.
For some people, that will be relatively straightforward. For others — especially those with neuromuscular, bulbar, respiratory, or brainstem-type symptoms — it is far more complex and should not be trivialized.
The biggest mistake is pretending these cases do not exist. The second biggest mistake is pretending they are simple.
What I am trying to build is a way to think clearly about them. When I look at cases like this, I do not see a mystery that should be dismissed. I see a pattern that medicine has not yet learned how to explain properly.
And until we do, people will continue to be told that nothing is happening — even when their lives have clearly changed.
