OTTAWA—Currency markets calmed on Monday in Asia after the initial shock of Omicron’s discovery sent investors scurrying for cover last week, but analysts warned of more volatility with little still known about the new coronavirus strain. The risk-sensitive Australian dollar rose 0.37 percent to $0.7139, recovering after a 1 percent tumble on Friday that saw it dip to $0.71125 for the first time since Aug. 20. The Mexican peso also rebounded, surging 0.93 percent to 21.7280 per dollar, after slumping to its weakest in almost 14 months at 22.1540 on Friday. The safe-harbour yen, which had been the biggest beneficiary of the flight to quality, weakened 0.09 percent to 113.60 per dollar. The Japanese currency surged as much as 2 percent at one point on Friday to 113.05. Fellow haven the Swiss franc sank 0.45 percent to 0.9257 per dollar. The South African rand recovered from Friday’s one-year low at …