This article as well as many others confuses meaning of "infection" and "disease". This is a very important distinction. The Pfizer press release says it is 90

This article as well as many others confuses meaning of "infection" and "disease". This is a very important distinction. The Pfizer press release says it is 90% effective at preventing the disease [1], it does not say the vaccine prevents infection. COVID-19 = the name for the disease cased by the virus SARS-CoV-2 = the name of the strain of coronavirus that causes the COVID-19 disease. This vaccine is 90% effective at preventing the disease, but while infected, you have replicating RNA in your body and will be contagious. [1] https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-announce-vaccine-candidate-against https://www.pfizer.com/news/press-release/press-release-deta...