WASHINGTON (AFP) - US President Donald Trump thanked China on Friday (Jan 24) for its "efforts and transparency" in tackling a deadly virus that has triggered a vast quarantine in the country.

"China has been working very hard to contain the Coronavirus," Trump tweeted, hours after the United States confirmed its second case of the Sars-like virus that has reached half a dozen countries.

"The United States greatly appreciates their efforts and transparency," he added. "It will all work out well. In particular, on behalf of the American People, I want to thank President Xi!"