Covid-19 deaths in the U.S. are at their lowest level in 10 months, and confirmed infections are the lowest since mid-September. On average, 600 people died each day, with deaths in single digits in more than half the states and hitting zero on some days -- dramatically down from mid-January, when more than 3,400 people died per day. At 38,000 daily, confirmed infections are down 85% from more than a quarter-million cases daily in early January. While some infectious disease specialists feel vaccinations have tamed the virus, others say India is a cautionary tale about complacency. Nearly 45% of U.S. adults are vaccinated, and more than 58% have received one dose.