LeBlanc, J. J., ElSherif, M., Ye, L., MacKinnon-Cameron, D., Ambrose, A., Hatchette, T. F., Lang, A. L., Gillis, H. D., Martin, I., Demczuk, W., Andrew, M. K., Boivin, G., Bowie, W., Green, K., Johnstone, J., Loeb, M., McCarthy, A. E., McGeer, A., Semret, M., Trottier, S., Valiquette, L., Webster, D., & McNeil, S. A. (2019). streptococcus pneumoniae serotype 3 is masking PCV13-mediated herd immunity in Canadian adults hospitalized with community acquired pneumonia: A study from the Serious Outcomes Surveillance (SOS) Network of the Canadian immunization research Network (CIRN). Vaccine, 37(36), 5466–5473. http://access.bl.uk/ark:/81055/vdc_100088879667.0x00004b