Port Blair, Mar. 8:  During the RT-PCR test conducted on 176 passengers who arrived here yesterday, one positive case has been detected. During RAT conducted on 18 passengers bound for North & Middle Andaman at Ferrargunj, no positive case has been detected. At Helipad,7 passengers were tested with RAT, no positive case has been detected. At Mohanpura Bus Terminus, test was conducted on 22 passengers, no positive case has been detected.  At Phoenix Bay Jetty, 24passengers were tested with RAT, no positive case has been detected. RT-PCR test was conducted on 14 crew members of M.V. Strait Island, the reports of which are awaited.