Phase 3 (third wave) is inevitable, given the high levels at which this virus is circulating. But it is not clear at what time scale this Phase 3 will occur. Hopefully, incrementally, but we should prepare for new waves. Ongoing surveillance is needed as are vaccine upgrades,” Dr K VijayRaghavan said at a government briefing. In a weekly report, the WHO said India accounted for 46 per cent of global cases and a quarter of global deaths reported in the past week. Daily infections rose by 3.82 lakh on Wednesday, health ministry data showed even as testing has slowed in many areas. The number has been in excess of 3 lakh every day for the past two weeks.