On this edition of Africa 54: authorities continued to press for calm across South Africa Tuesday, following Monday’s looting and violence in the aftermath of former president Jacob Zuma's imprisonment; the United Nations Human Rights Council called for an immediate end to all violations in Ethiopia's conflict-torn Tigray region; And, the World Health Organization Regional Office for Africa is warning of a rampant spread of more contagious COVID variants, as a third wave of Covid-19 infections sweeps across Africa.