Gold took a stride toward $1 600 an ounce as the US-China trade war worsened, hurting the outlook for global growth and boosting demand for the traditional haven as risk assets suffered. Bullion futures rallied as much as 1.8% to $1 565 an ounce on the Comex, the highest since 2013. Silver was also favored, with spot prices up as much as 2.1%. The advances in the week’s opening session followed gains on Friday.