Jassat, W., Abdool Karim, S. S., Ozougwu, L., Welch, R., Mudara, C., Masha, M., Rousseau, P., Wolmarans, M., Selikow, A., Govender, N., Walaza, S., von Gottberg, A., Wolter, N., Terrence Pisa, P., Sanne, I., Govender, S., Blumberg, L., Cohen, C., & Groome, M. J. (2022). Trends in Cases, Hospitalizations, and Mortality Related to the Omicron BA.4/BA.5 Subvariants in South Africa. Clinical Infectious Diseases, 76(8), 1468–1475. https://doi.org/10.1093/cid/ciac921