Queensland is dealing with another mystery case of COVID-19 as police put the squeeze on an infected pair accused of lying about their movements. The Gold Coast and Brisbane are on alert after all three cases spent time in both communities while they were infectious. Mystery surrounds the sole case reported on Monday—a man in his 40s who tested positive after 14 days in hotel quarantine following a trip to China. The man returned three negative tests while in quarantine in Brisbane and returned to his home on the Gold Coast on July 12. The following day he and his family fell ill. They subsequently went to a doctor seeking tests and the man returned a positive result on Sunday. So far no one else in the family is positive but the case has significantly expanded Queensland’s list of exposure sites, including the Goodstart Early Learning Centre at Parkwood, various …