Long COVID and herd immunity

The recurring bleat of vaccine denialists is that COVID should be addressed through “herd immunity.” Well, OK, a vaccinated population has herd immunity, but that’s not what they mean. They mean herd immunity in the sense of the Black Plague—the people who didn’t die were immune.

Apart from all the deaths caused by COVID infections in unvaccinated people, there’s the issue of long COVID. While its etiology is poorly understood, its reality is certain. Vaccination not only keeps you out of the ED and the morgue, it also reduces your chances of long COVID.

For victims of long COVID, there isn’t a cure, but there may be some relief:

“In September 2021, Systrom was among the first clinicians in the nation to demonstrate a measurable change in the physiology of patients suffering from long COVID — and explain how those changes might account for the crushing fatigue that is among its most debilitating symptoms. The study helped establish long COVID as a legitimate condition and overcome the skeptics, said Dr. David Putrino, who runs a long COVID clinic at New York’s Mt. Sinai Hospital.

“The study grew out of his experiences with patients: Prior to the arrival of COVID-19, Systrom, a critical care physician who runs a pulmonary clinic at Brigham and Women’s Hospital, had spent years studying chronic fatigue syndrome, also known as myalgic encephalomyelitis, an illness afflicting more than 3 million Americans. When Systrom saw his first long COVID patients — before the condition even had a name — he recognized their symptoms immediately. They were similar if not identical to those reported by patients with chronic fatigue.

“To prove it, Systrom had 10 patients don masks and threaded thin, flexible tubes into their jugular veins and major arteries in the forearm to measure the concentration of oxygen absorbed into the lungs, passed into the bloodstream, and taken up by the body’s muscles as they underwent rigorous workouts on stationary bicycles.

“Patients who reported symptoms of long COVID absorbed just as much oxygen into their lungs as those without it. But the amount reaching their muscles — oxygen needed to produce the energy required by the exercise — was dramatically reduced, Systrom found.

A growing body of research suggests that both long COVID and chronic fatigue are post-viral syndromes that result in chronic, low-grade inflammation that can damage healthy tissue and, in some cases, the production of auto-antibodies that can attack it.”

If you don’t have long COVID, make sure your vaccinations are up-to-date. If you do, there may be some relief in your future. Either way, stay vaccinated, peeps.

https://www.bostonglobe.com/2024/10/02/metro/long-covid-treatments-diagnosis-brigham-and-womens/