Cohen, C., Kleynhans, J., Moyes, J., McMorrow, M. L., Treurnicht, F. K., Hellferscee, O., Mathunjwa, A., von Gottberg, A., Wolter, N., Martinson, N. A., Kahn, K., Lebina, L., Mothlaoleng, K., Wafawanaka, F., Gómez-Olivé, F. X., Mkhencele, T., Mathee, A., Piketh, S., Language, B., Tempia, S., , , Buys, A., Mathee, A., von Gottberg, A., Language, B., Cohen, C., Maake, L., Wafawanaka, F., Treurnicht, F., Kleynhans, J., Moyes, J., Kahn, K., Mothlaoleng, K., Lebina, L., Carrim, M., McMorrow, M. L., Martinson, N. A., Wolter, N., Hellferscee, O., Wagner, R. G., Tempia, S., Piketh, S., Mkhencele, T., & Gómes-Olivé, F. X. (2021). asymptomatic transmission and high community burden of seasonal influenza in an urban and a rural community in South Africa, 2017–18 (PHIRST): a population cohort study. Lancet, 9(6), e863–e874. http://access.bl.uk/ark:/81055/vdc_100130757242.0x00000a