Good catch. Trump's call with Xi was March 27. His last use of phrase "Chinese virus" was on March 26, first at that day's White House briefing then on the Hannity program that night. After taking to Xi - Trump stopped it.
#Presidementia Transcript of 3/26 Press Briefing: Now available on the WH website, the surprisingly unredacted, unedited text of Trump's remarks yesterday. As a fatally wounded Gus said to Call in Lonesome Dove, "It was quite a party." #TrumpPandemic