Pam Belluck reports for the New York Times on new findings showing that people who get Covid-19 vaccines reduce their risk of long Covid. Long Covid can cause serious symptoms such as exhaustion and brain fog.
Dr. Clifford Rosen writes in the New England Journal of Medicine that people in the United States who had been vaccinated for Covid had a much smaller chance of developing long Covid than people who were not vaccinated.
Vaccines keep people from getting super sick when they are infected with Covid. And, people who get long Covid tend to be people who become severely sick from Covid.
That said, some people who only have minor symptoms from Covid also get long Covid. And, some people who are vaccinated still get long Covid. Getting a vaccine will not always prevent you from getting long Covid.
Rosen’s team looked at millions of medical records, including the records of 450,000 people who had Covid between March 1, 2020 and the end of January 2022. They were not able to look at different subpopulations. They looked at data from the Veterans Administration, which keeps good data, but treats mostly older white men.
Long Covid was least evident in the last two months of the study among vaccinated people who got Covid. Only 3.5 percent had long Covid at that time. Among unvaccinated people who were infected with Covid at the same time, the incidence of long Covid was 7.8 percent.
The researchers underscore that. over time, the efficacy of the Covid vaccine diminishes. People need yearly vaccines. Without vaccines, the incidence of long Covid will rise.
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