Out of the 10 players who tested positive in the first round of PCB testing, six tested negative in the second round on Thursday.
PCB CEO Wasim Khan said: "With the Test series being played first in August, [head coach] Misbah [ul-Haq] is satisfied with the group of players that are traveling on Sunday as the focus will be on red-ball preparation". Former captain Mohammed Hafeez claimed he has tested negative, followed by another positive.
Pakistan will travel with an initial 20-man playing squad for the tour of England following the results from the latest round of coronavirus tests.More news: Couple point guns at protesters in St Louis outside their mansion
The board has said it will announce results of all tests on Saturday (June 27). "These players will undergo tests following the completion of the quarantine period and will be sent to England following two negative tests", the PCB stated. "They will undergo third round of testing at some stage next week and if their tests remain negative, then the PCB will make arrangements to send them to England".
Akhtar said that Hafeez should have confronted the PCB rather than posting his test result on Twitter.
The Pakistan Cricket Board expressed concern on Friday over the positive results from 10 of the 29 cricketers chosen for the tour.
Mohammad Hafeez, Wahab Riaz, Fakhar Zaman, Shadab Khan, Mohammad Rizwan and Mohammad Hasnain will now undergo a third round of testing this week before they will be allowed to travel to the United Kingdom and meet up with the rest of their team. Pakistan fast bowler Musa Khan and under-19 captain Rohail Nazir were among five reserve players and both tested negative.More news: Louis couple points guns at protesters near mayor's home
Meanwhile, bowling coach Waqar Younis is heading from Australia to England via Dubai on Saturday to join the Pakistan squad there, and will be appearing for Covid-19 test after arriving there.
The squad will have a 14-day isolation period on arrival before continuing their preparations ahead of the first Test with two four-day warm-up matches. The side will move to Derbyshire on 13 July.
First batch of players leaving for England: Azhar Ali (captain), Babar Azam (vice-captain), Abid Ali, Asad Shafiq, Faheem Ashraf, Fawad Alam, Iftikhar Ahmad, Imad Wasim, Imam-ul-Haq, Khushdil Shah, Mohammad Abbas, Musa Khan, Naseem Shah, Rohail Nazir, Sarfaraz Ahmed, Shaheen Shah Afridi, Shan Masood, Sohail Khan, Usman Shinwari and Yasir Shah.More news: Gilead prices remdesivir at $390 per vial