Warnings that COVID infections in SA are slowly increasing In the past few days the Northern Cape, in particular, has seen a marked increase. FILE: A City of Tshwane Health official takes a nasal swab to test for the COVID-19 coronavirus on a taxi operator at the Bloed Street Mall in Pretoria Central Business District, on 11 June 2020. Picture: AFP. CAPE TOWN - Coronavirus infections in South Africa are slowly starting to increase. This is according to actuary Louis Rossouw who analyses data on the pandemic’s trajectory compiled by the National Institute of Communicable Diseases (NICD). In the past few days the Northern Cape, in particular, has seen a marked increase.