https://www.news-medical.net/news/20210928/COVID-19-vaccination-reduces-risk-and-duration-of-SARS-CoV-2-infection.aspx https://www.news-medical.net/news/2021092

https://www.news-medical.net/news/20210928/COVID-19-vaccination-reduces-risk-and-duration-of-SARS-CoV-2-infection.aspx https://www.news-medical.net/news/20210928/COVID-19-vaccinat... https://news.arizona.edu/story/covid-19-vaccine-reduces-severity-length-viral-load-those-who-still-get-infected https://news.arizona.edu/story/covid-19-vaccine-reduces-seve... Not hard to google?