All 60 traders at Taman Megah SS24 Market in Petaling Jaya will be screened for Covid-19 tests after one of the traders tested positive for the virus, said Health director-general Datuk Dr Noor Hisham Abdullah.br br The Petaling Jaya City Council (MBPJ) has sealed off the Taman Megah SS24 Market to clean and disinfect the market complex from 1.30pm Sunday.