South African Health Minister Zweli Mkhize has confirmed that the sale of one million doses of the AstraZeneca coronavirus vaccine received from the Serum Institute of India last month has been concluded. The vaccines were sold to 14 African countries after South Africa suspended its planned usage to vaccinate healthcare workers when it was found to have limited efficacy against a new variant of the virus that became dominant in the country during a second wave of the pandemic towards the end of last year.