Port Blair, April 8: During RAT conducted on 60 passengers bound for North & Middle Andaman at Ferrargunj, no positive case has been detected. At Mohanpura Bus Terminus, test was conducted on 32 passengers, no positive case has been detected.  At Phoenix Bay Jetty, 33 passengers were tested with RAT, no positive case has been detected. At helipad, 9 passengers were tested with RAT, no positive case has been detected.