Authors' conclusions Influenza vaccines have a modest effect in reducing influenza symptoms and working days lost. There is no evidence that they affect complications, such as pneumonia, or transmission. User acrazypsychnurse, in the MyCrazyWorld subreddit, 07 Jun 2022
Vaccines for preventing influenza in healthy adults User summersjss, in the reddit.com subreddit, 05 Oct 2011
Paper on gov't web site: "There is no evidence that [influenza vaccines] affect complications, such as pneumonia, or transmission." Silly anti-vaxer's! User YesYesYesNoYes, in the skeptic subreddit, 11 Jan 2011