Journal Article
Madhi, S. A, S. A Nzenze, M. C Nunes, L. Chinyanganya, N. Van Niekerk, K. Kahn, R. Twine, L. De Gouveia, A. Von Gottberg, and T. Shiri.
"Residual colonization by vaccine serotypes in rural South Africa four years following initiation of pneumococcal conjugate vaccine immunization." Expert Review of Vaccines 19, no. 4 (2020): 383-393.