Editorial context: This is a proposed model, not an established explanation for ME/CFS or Long COVID. The individual gene associations and causal steps below need reliable evidence and independent testing; the supplied text did not include citations. It should not be used to diagnose, guide treatment, or replace clinical advice.
1. The Genetic Setup (Pre-Infection Baseline)
Before the virus ever enters the body, the host possesses a dormant triad of genetic vulnerabilities: a weakness in regulating intracellular calcium (CAMK2B), fragile vascular endothelial repair and lipid defenses (PTGIS, PRDX6), and a predisposition to neuro-immune activation (AIF1).
2. The Viral Invasion and Calcium Flood (Acute Phase)
SARS-CoV-2 enters the system. The viral Envelope (E) protein punches holes (viroporins) in host cell membranes, while the Spike protein over-activates host mechanosensitive channels (Piezo1 and TRPV4). Because the host's genetic calcium defenses are weak, a massive, toxic wave of calcium floods into the cells. Simultaneously, the Spike protein blocks the alpha-7 nicotinic receptor, disabling the vagus nerve and locking the autonomic nervous system in a "fight or flight" state.
3. Endothelial Fracture and Amyloid Clotting (Days to Weeks)
The toxic influx of calcium physically damages the inner lining of the blood vessels (the endothelium). In this highly inflamed, damaged vascular environment, the circulating Spike protein interacts with fibrinogen in the blood, causing it to misfold into dense, cross-beta sheet amyloid microclots that resist normal enzymatic breakdown.
4. The Capillary Blockade and Tissue Hypoxia (Weeks to Months)
These indestructible amyloid microclots circulate and wedge deeply into the dense, microscopic capillary networks (3–8 µm in diameter) of the brain, skeletal muscle, and internal organs. This creates a severe hydraulic blockade. Red blood cells cannot pass through, meaning oxygen cannot diffuse into the surrounding tissues. The tissues begin to suffocate despite the lungs functioning normally.
5. Mitochondrial Stalling (The Bioenergetic Drop)
Deprived of oxygen—the terminal electron acceptor required for respiration—the mitochondria inside the hypoxic tissues are forced to halt oxidative phosphorylation. The cellular production of ATP (energy) plummets.
6. Cellular Voltage Collapse (The Mechanical Crash)
With ATP supplies exhausted, the cell's essential Na+/K+-ATPase pumps stall. These pumps are responsible for maintaining the electrical charge (resting membrane potential) of the cell. As they fail, the steep transmembrane voltage gradient collapses. The cell's electrical battery effectively drains to zero.
7. Metabolic Hibernation and PEM (The Chronic State)
Because the voltage has collapsed and there is no ATP, the cell's calcium-clearance pumps also fail. The original flood of viral-induced calcium becomes permanently trapped inside the cell. To survive this toxic, low-energy state, the cell locks itself into metabolic hibernation. Any physical or cognitive exertion demands energy the system does not have, triggering the severe, disproportionate systemic crash known as Post-Exertional Malaise (PEM).
8. The Peripheral Autoimmune Attack (Parallel Track)
As the central brain and muscles lock down, the immune system produces pathogenic IgG autoantibodies. These antibodies slip through the highly permeable Blood-Nerve Barrier and bind directly to the Dorsal Root Ganglia (sensory nerves) outside the spine. This triggers chronic ectopic nerve firing, driving the physical burning pain, sensory sensitivity, and peripheral dysautonomia that run parallel to the central brain fog and exhaustion.