The greenback gained about 0.6% on the risk-sensitive Australian dollar and the yen streaked ahead even further, gaining half a percent on the dollar to a one-week high of 104.95, and rising more than 1% on the Aussie.
The dollar rose and the safe-haven yen made its sharpest jump in more than a month on Friday after U.S. President Donald Trump said he tested positive for COVID-19, just a month ahead of the Nov. 3 presidential election.
The news could cause a new wave of market volatility heading into the election. Trump, 74, is at high risk for the deadly virus both because of his age and because he is considered overweight.
