Educational tool · not medical advice
Long COVID isn't one disease. Figure out which mechanisms are driving your symptoms.
Researchers have identified roughly a dozen distinct ways COVID can leave you unwell — from microclots and autonomic dysfunction to persistent virus, mitochondrial damage, sleep disruption, and an over-protective nervous system. Any given person may have one, several, or many at once. The hard part is working out which ones are yours — and testing for everything costs thousands of dollars.
Reason across mechanisms
Answer questions about your history, symptoms, time course, and any test results. The tool estimates which mechanisms are likely active — and shows you exactly why each one scored the way it did.
Find the most informative test
When the picture is unclear, it recommends the single test that would buy the most clarity per dollar — instead of an open-ended list of expensive workups.
Subtract before you add
Many “Long COVID” cases are something else, or are worsened by well-meaning supplements. The tool flags cheap, high-yield checks and steers you away from common harms.
An honest word on what this can do
Across hundreds of clinical trials, very few Long COVID treatments have held up in rigorous testing — and several widely-promoted ones have failed their best trials. So this tool doesn't promise a cure. Its honest value is to help you and your clinician match your situation to the right diagnostic workup, and to avoid wasting money and risking harm. That mirrors what the research actually supports.
It is not a diagnosis, and its estimates come from expert judgment rather than a validated algorithm. See how it works and where it can be wrong.