The England and Sussex bowler returned a positive test on May 26
Ollie Robinson is in isolation after testing positive for Covid-19 on Thursday, May 26.
The positive test is the latest setback for the England and Sussex seamer who was forced to withdraw from the County Select XI to face New Zealand last week following stiffness in his back during the warm-up.
In a statement, the ECB confirmed the lower-back symptoms displayed by Robinson last week would be assessed following the completion of his isolation period.

Ollie Robinson has played just three red-ball matches since England's tour match against West Indies Cricket Board at the start of March (Gareth Copley/Getty Images]
Under current Covid-19 guidelines, individuals who test positive for the virus are encouraged to isolate for a minimum of five days and avoid meeting high-risk individuals for 10 days.
Robinson's back has been causing him considerable issues in recent months, with back spasms bothering the bowler during the Ashes and later recurring during England's tour of the Caribbean.
He played no part in the three-Test series against West Indies and missed Sussex's first four LV= Insurance County Championship matches in April - largely due to a tooth infection - before returning against Middlesex and Leicestershire, where he suffered from food poisoning.
Since the end of the Ashes, he has bowled just 68.3 overs in first-class matches and a further 18 overs for Sussex against the touring New Zealand side.