HIGHER hospital admissions among children during a fourth wave of COVID-19 infections in South Africa that is driven by the Omicron variant should prompt vigilance but not panic as infections have been mild, a health official said on Saturday. A large number of infants admitted with COVID-19 last month in Tshwane, the metropolitan area that includes the capital Pretoria, raised concerns that the Omicron variant could pose greater risks for young children than other coronavirus variants. Scientists have yet to confirm any link and have cautioned that other factors could be at play. Ntsakisi Maluleke, a public health specialist in…