Botswana's Isaac Makwala didn't run like a sick man as he ran two rounds of the 200 metres -- one on his own -- to reach the final at the world championships on Wednesday.
The 30-year-old had been given the go-ahead by the sport's governing body the IAAF after missing Monday's heats because the quarantine period for the highly contagious norovirus which he had been diagnosed with had expired.