Boutique gym and fitness studio BLOK in Manchester has closed temporarily after being told two recent visitors tested positive for coronavirus.The gym is based within the Ducie Street warehouse, the towering red brick former Victorian railway building near Piccadilly railway station.Bosses said the gym closed today - Thursday - and would not reopen until Monday.Members and visitors have been contacted and told to get a test then self-isolate until they get their results.BLOK chief executive officer Ed Stanbury said all staff and instructors have also been tested and were self-isolating ahead of their results.He said the studio's pre-planned track and trace system kicked in immediately.The popular Manchester gym opened last September and is.