^Streptococcus pneumoniae is one of the most common pathogens found in community acquired pneumonia (CAP)⁹

References​
1. Shea KM, et al. Rates of Pneumococcal Disease in Adults with Chronic Medical Conditions. Open Forum Infect Dis. 2014 May 27;1(1):ofu024​
2. Wyrwich .WK, et al. Observational longitudinal study of symptom burden and time for recovery from community-acquired pneumonia reported by older adults surveyed nationwide using the CAP Burden of Illness Questionnaire. Patient Related Outcome Measures 2015:6 215–223.​
3. Tomczyk.S, et al. Use of 13-Valent Pneumococcal Conjugate Vaccine and 23-Valent Pneumococcal Polysaccharide Vaccine Among Adults Aged ≥65 Years: Recommendations of the Advisory Committee on Immunization Practices (ACIP) MMWR.2014;63:37​
4. American lung association-pneumococcal pneumonia.​
https://www.lung.org/lung-health-diseases/lung-disease-lookup/pneumonia/pneumococcal#:~:text=Common%20symptoms%20of%20pneumococcal%20pneumonia,last%20for%20weeks%2C%20or%20longer. (Accessed 25th Aug 2020)​
5. Pelton.SI, et al. Decline in Pneumococcal Disease Attenuated in Older Adults and Those with Comorbidities Following Universal Childhood PCV13 Immunization.CID 2019;68(11):1831–8​
6. National Adult immunization schedule https://www.moh.gov.sg/news-highlights/details/moh-establishes-national-adult-immunisation-schedule-extends-use-of-medisave-for-vaccines-under-the-schedule (Accessed 6th Aug 2020)​
7. CDC How to prevent pneumococcal factsheet, https://www.cdc.gov/pneumococcal/resources/prevent-pneumococcal-factsheet.pdf (Accessed 3rd Aug 2020)​
8. American Lung association- DYK you can still get pneumonia in summer.​
https://www.lung.org/blog/you-can-still-get-pneumonia-in-summer#:~:text=In%20fact%2C%20pneumococcal%20pneumonia%20can,pneumonia%20is%20called%20pneumococcal%20pneumonia (Accessed 6th Aug 2020)​
9. Jain.S, et al. Community-Acquired Pneumonia Requiring Hospitalization among U.S. Adults N Engl J Med 2015;373:415-27.