South Africa's new Covid variant triggers global concerns. The alarming situation has ignited the need for a booster dose. The health ministry of Israel has come out and confirmed that there are at least 3 cases of the South African Covid-19 variant. All the 3 cases are of people who had been fully vaccinated. All 3 of them had traveled abroad after which they got infected. "South African Covid variant is one of the most infectious variants, the new variant, labeled as B.1.1.529 is 500 times more competitively infectious than the Delta variant," Dr. Sanjeev Bagai, Chairman, Nephron, tells TIMES NOW.