New Covid variant roils global markets with oil sinking 5% : Rashtra News Registered Nurse Savanah Wagstaff watches as Aliza Burns, a nursing student at Brigham Young University–Idaho, treats a coronavirus disease (COVID-19) positive patient in his isolation room at Madison Memorial Hospital in Rexburg, Idaho, U.S., October 28, 2021.Shannon Stapleton | ReutersGlobal markets went