Giving a cocktail of one or two antiviral drugs will smashdown the viral levels in the short term, but ultimately will select for the resistant viruses in the long term.
Strauss backed away to smash Shoaib down the ground and record the 50 in the ninth over but he was reprieved next ball on 23 when the giant Mohammad Irfan, rather incongruously stationed at leg gully, could not get his 7ft 1in frame down in time and spilled the low chance.
The 21-year-old American looked less sluggish in the second set but handed the match to her 30-year-old opponent when she hit a smash wide at 5-6 down.