FDA Clears Pfizer Shot for Teens; U.S. Cases Slow: Virus Update Bloomberg 5 days ago (Bloomberg) -- The U.S. Food and Drug Administration approved the use of Pfizer-BioNTech vaccine for children aged 12 to 15. The number of new cases in U.S. rose last week at the slowest pace since the pandemic began, as more Americans are vaccinated and the nation recovers from a winter spike fueled by holiday travel. India’s capital of New Delhi extended its lockdown for another week as it battled a wave of infections and warned about a potentially deadly fungal infection in Covid-19 patients. Meanwhile, the World Health Organization sees the highly contagious variant spreading in India as a global concern.