COVID-19 survivors with lingering symptoms can safely be vaccinated against the coronavirus, a small study suggests.
Researchers tracked 36 individuals with "long COVID" who had been hospitalized while acutely ill and who later received at least one dose of either the Pfizer/BioNTech or AstraZeneca vaccine.
Eight months after admission to the hospital, and before vaccination, participants had at least one lingering symptom and half had at least four symptoms.
Before vaccination, their quality-of-life was "markedly reduced" from normal, the researchers reported in Annals of Internal Medicine.
One month after vaccination, 71% of their symptoms remained unchanged, 23% of their symptoms were improved, and 6% of symptoms had worsened.
There was no significant worsening in quality-of-life or mental well-being, and outcomes were similar with both vaccines, researchers reported.
The results may reassure people with persistent COVID-19 symptoms that the different types of vaccines developed by Pfizer/BioNTech or AstraZeneca are "not associated with a decrease in quality of life or worsening of symptoms," the researchers said.