It may not have been the virus that has been sweeping through the area this past week, but the good news for Andy Murray is that he thinks he knows what prompted his second-round defeat here.
When Elena Baltacha takes on Germany's Julia Goerges today in the second round of the BNP Paribas Open in Indian Wells, she will do so with a new-found confidence.
It says a lot for Andy Murray's state of mind that the first thing he said after beating Tomas Berdych to reach the semi-finals of the Dubai Duty Free Championships yesterday was "bring on Novak".