COVID-19 lockdowns in low- and middle-income countries: Success against COVID-19 at the price of greater costs Authors' affiliations S A Madhi, University of the Witwatersrand, Johannesburg, South Africa G E Gray, South African Medical Research Council, Cape Town, South Africa N Ismail, National Institute for Communicable Diseases, Johannesburg, South Africa A Izu, University of the Witwatersrand, Johannesburg, South Africa M Mendelson, Groote Schuur Hospital and University of Cape Town,...