South Africa has signed an agreement with Johnson & Johnson to secure 11 million COVID-19 vaccine doses and will ease restrictions due to a decline in new cases, President Cyril Ramaphosa said on Sunday. South Africa has been the hardest-hit on the continent by the pandemic, recording almost half of the COVID-19 deaths and more than a third of reported infections. But daily cases have fallen below 2,000, from a peak above 20,000 last month during a second wave of infections. Ramaphosa said in a televised address that 2.8 million of the J&J doses would be delivered in the second quarter, with the rest spread throughout the year. South Africa started administering the single-dose J&J vaccine this month in a research study targeting healthcare workers but has not yet rolled out sh...