Editing Pneumonia (section)

===Vaccination===
Vaccination prevents against certain bacterial and viral pneumonias both in children and adults. [[Influenza vaccine]]s are modestly effective at preventing symptoms of influenza,<ref name=Lancet11/><ref>{{cite journal | vauthors = Demicheli V, Jefferson T, Ferroni E, Rivetti A, Di Pietrantonj C | title = Vaccines for preventing influenza in healthy adults | journal = The Cochrane Database of Systematic Reviews | volume = 2020 | pages = CD001269 | date = February 2018 | issue = 2 | pmid = 29388196 | pmc = 6491184 | doi = 10.1002/14651858.CD001269.pub6 }}</ref> The [[Centers for Disease Control and Prevention]] (CDC) recommends yearly influenza vaccination for every person 6&nbsp;months and older.<ref>{{cite web|title=Seasonal Influenza (Flu)|url=https://www.cdc.gov/flu/|work=Centers for Disease Control and Prevention|access-date=29 June 2011|url-status=live|archive-url=https://web.archive.org/web/20110629190823/http://www.cdc.gov/flu/|archive-date=29 June 2011}}</ref> Immunizing health care workers decreases the risk of viral pneumonia among their patients.<ref name=IDSA2007>{{cite journal | vauthors = Mandell LA, Wunderink RG, Anzueto A, Bartlett JG, Campbell GD, Dean NC, Dowell SF, File TM, Musher DM, Niederman MS, Torres A, Whitney CG | title = Infectious Diseases Society of America/American Thoracic Society consensus guidelines on the management of community-acquired pneumonia in adults | journal = Clinical Infectious Diseases | volume = 44 | issue = Suppl 2 | pages = S27–72 | date = March 2007 | pmid = 17278083 | pmc = 7107997 | doi = 10.1086/511159 | doi-access = free }}</ref>

Vaccinations against ''Haemophilus influenzae'' and ''Streptococcus pneumoniae'' have good evidence to support their use.<ref name=PedNA09/> There is strong evidence for vaccinating children under the age of 2 against ''Streptococcus pneumoniae'' ([[pneumococcal conjugate vaccine]]).<ref>{{cite journal | vauthors = Lucero MG, Dulalia VE, Nillos LT, Williams G, Parreño RA, Nohynek H, Riley ID, Makela H | title = Pneumococcal conjugate vaccines for preventing vaccine-type invasive pneumococcal disease and X-ray defined pneumonia in children less than two years of age | journal = The Cochrane Database of Systematic Reviews | issue = 4 | pages = CD004977 | date = October 2009 | volume = 2009 | pmid = 19821336 | pmc = 6464899 | doi = 10.1002/14651858.CD004977.pub2 }}</ref><ref>{{cite web|url=https://www.who.int/biologicals/areas/vaccines/pneumo/en/|archive-url=https://web.archive.org/web/20080428235941/http://www.who.int/biologicals/areas/vaccines/pneumo/en/|archive-date=28 April 2008|title=WHO {{!}} Pneumococcal conjugate vaccines|website=who.int|access-date=16 January 2018}}</ref><ref name=CDC2024Vac>{{cite web |url=https://www.cdc.gov/pneumococcal/hcp/vaccine-recommendations/index.html |title=Pneumococcal Vaccine Recommendations |publisher=[[Centers for Disease Control and Prevention]] |access-date=7 February 2025 |date=26 October 2024 |website=cdc.gov |language=en-us}}</ref> Vaccinating children against ''Streptococcus pneumoniae'' has led to a decreased rate of these infections in adults, because many adults acquire infections from children. A [[Pneumococcal polysaccharide vaccine|''Streptococcus pneumoniae'' vaccine]] is available for adults, and has been found to decrease the risk of [[invasive pneumococcal disease]] by 74%, but there is insufficient evidence to suggest using the pneumococcal vaccine to prevent pneumonia or death in the general adult population.<ref>{{cite journal | vauthors = Moberley S, Holden J, Tatham DP, Andrews RM | title = Vaccines for preventing pneumococcal infection in adults | journal = The Cochrane Database of Systematic Reviews | volume = 1 | issue = 1 | pages = CD000422 | date = January 2013 | pmid = 23440780 | pmc = 7045867 | doi = 10.1002/14651858.CD000422.pub3 }}</ref> The CDC recommends that young children and adults aged 50 or older receive the pneumococcal vaccine, as well as older children or younger adults who have an increased risk of getting pneumococcal disease.<ref name=CDC2024Vac /> In October 2024, the CDC lowered the age for adult pneumococcal vaccination from 65 to 50 years old to give more adults the opportunity to protect themselves from pneumococcal disease at the age when risk of infection substantially increases.<ref>{{cite web |title=CDC Recommends Lowering the Age for Pneumococcal Vaccination from 65 to 50 Years Old |url=https://www.cdc.gov/media/releases/2024/s1023-pneumococcal-vaccination.html |publisher=[[Centers for Disease Control and Prevention]] |access-date=7 February 2025 |date=23 October 2024 |website=cdc.gov |language=en-us}}</ref> The pneumococcal vaccine has been shown to reduce the risk of community acquired pneumonia in people with chronic obstructive pulmonary disease, but does not reduce mortality or the risk of hospitalization for people with this condition.<ref name=Walters2017>{{cite journal | vauthors = Walters JA, Tang JN, Poole P, Wood-Baker R | title = Pneumococcal vaccines for preventing pneumonia in chronic obstructive pulmonary disease | journal = The Cochrane Database of Systematic Reviews | volume = 1 | pages = CD001390 | date = January 2017 | issue = 3 | pmid = 28116747 | pmc = 6422320 | doi = 10.1002/14651858.CD001390.pub4 }}</ref> People with COPD are recommended by a number of guidelines to have a pneumococcal vaccination.<ref name=Walters2017 /><!-- Quote = respiratory guidelines in Europe (ERS 2014) and Australia (COPDX 2016) recommend immunisation with the PPV‐23 polysaccharide pneumococcal vaccine for adults at risk of pneumococcal disease, including those with COPD... Major COPD guidelines (COPDX 2016; ERS 2014; GOLD 2016; NICE 2010) have recommended pneumococcal vaccination --> Other vaccines for which there is support for a protective effect against pneumonia include [[Pertussis vaccine|pertussis]], [[varicella vaccine|varicella]], and [[Measles vaccine|measles]].<ref name=CDCPrev2012/>