India's COVID crisis continues to deepen, with nearly 300,000 cases reported today—by far its biggest single-day total—and the country's leader addressed the nation to reassure the public about the government response, which includes efforts to secure more oxygen.In other global developments, Europe's drug safety group today probed reports of blood clots in some who received the Johnson & Johnson vaccine, concluding that a rare event warning is needed, but benefits of using the vaccine still outweigh the risks.India takes multiple steps to tackle onslaughtHealth officials have warned that hospitals in New Delhi could run out of oxygen by tomorrow, and as cases surge to unprecedented levels in the world's second most populous country,