The circuit board has been running a tireless schedule of COVID-19 testing for all players and officials selected to travel to South Africa and Zimbabwe and only Hasan had positive tests in the initial tests.
The Pacer had apparently also tested positive in Karachi the day before the Pakistan Super League 6 was postponed earlier this month in Karachi as cases of infection increased among franchise players and officials and even board members.
Hasan reportedly tested positive after attending a small gathering that was attended by Islamabad United players, including Australian leg spinner Fawad Ahmed.
Fawad had returned a positive test during the league and was only allowed to return home after completing a quarantine period at the hotel. Hasan and Fawad are part of the Islamabad United team in the PSL, which is due to resume in June.
A reliable source in the circuit board said the relentless COVID-19 tests are being carried out at the Pakistani camp as the squad is due to leave on March 28 and the board does not want any problems to arise on the eve of departure.
The PCB has yet to confirm whether the entire Pakistani squad will travel to Johannesburg on a charter flight or whether the players who will only participate in the two-test series in Zimbabwe will join the rest of the team in mid-April.
Pakistan will play three ODIs and four T20 internationals in South Africa and two Tests and three T20s in Zimbabwe.
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