U.S. dollar bank notes are arranged for a photograph on September 7, 2017 in Hong Kong.

The U.S. dollar rose against a basket of currencies for a third day on Thursday, as worries about the economic fallout from the coronavirus boosted dollar demand despite recent steps by world central banks aimed at alleviating market stress.

The dollar index, which measures the greenback's strength against a basket of six other major currencies, rose about 1.0% to 101.76, its highest since January 2017. The index is up about 3% for the week.