Isaac Makwala will run a lone time trial on Wednesday evening in a bid to make the World Championships 200m semi-finals, 24 hours after he was banned from taking his place in the 400m final.

Makwala was not allowed to enter the London Stadium on Tuesday evening after athletics’ governing body ordered him to go into quarantine for 48 hours amid a norovirus outbreak that has affected more than 40 athletes and officials from a number of nations.

The Botswana athlete insisted he was fighting fit and ready to compete – and will now be given a chance to prove himself in a lone time trial at 6.40pm on Wednesday.

Should Makwala, who is the fastest man in the world this year over the distance, run faster than 20.53 seconds, he will receive a spot in the semi-finals which take place later in the night.

The International Association of Athletics Federations released a statement confirming the decision: “The IAAF has received a written request from the Botswanan federation for Isaac Makwala to compete in the 200m.