s to record lows.
Yields on 10-year and 30-year US Treasuries teetered near record lows as worries about the economic impact of the virus outbreak boosted safe-haven assets. "What we are seeing is share markets are playing catch up," said Michael McCarthy, chief market strategist at CMC Markets in Sydney. The S&P 500 lost $2.14 trillion in market capitalization over the last four sessions, according to S&P Dow Jones Indices analyst Howard Silverblatt.Adding to recent fears was an alert from the US Centers for Disease Control and Prevention on Tuesday warning Americans to prepare for the spread of coronavirus in the United States, signalling a change in tone for the Atlanta-based US health agency.