PROMIT MUKHERJEE SOUTH Africa's total coronavirus infections since the first case in March crossed a million on Sunday, its Health Ministry said, just days after a new faster-spreading variant was confirmed to be present in the country. The grim milestone comes nine days after the country, the worst hit in Africa, reported 900,000 cases. The country had taken two weeks to reach 900,000 from the 800,000 seen early in December. Several hospitals and medical centres have reported wards overflowing with patients with many healthcare workers cancelling their vacations to tackle a huge influx of patients. Mediclinic International Plc, among the…