Topic summary
COVID-19 vaccination
Extracted from the Wikipedia article COVID-19 vaccine.
Against long COVID
COVID-19 vaccination seems to reduce risk of long COVID. Three doses of a COVID-19 vaccine may reduce the risk by 70%, while two doses give 43% protection and one dose gives 19% protection. The evidence is based on observational studies, rather than on randomized clinical trials. The large randomized control trials on COVID-19 vaccines did not include long COVID as an outcome measure.