New York (AFP) – US stocks gyrated Tuesday as markets grappled with the latest figures on the coronavirus outbreak, while oil prices tumbled in a volatile session ahead of key talks by petroleum producers.After a torrid Monday rally in New York that boosted European and Asian markets on Tuesday, Wall Street appeared poised for a second straight positive session, with the Dow piling on almost 1,000 points at its session peak.But the rally soon faded. The coronavirus crisis has forced markets to try to wade through a series of conflicting data on the course of the disease in recognition that the…