DEMOW: Three people who had come from Delhi on Thursday morning were sent to the quarantine centre set up in Sivasagar Polytechnic Institution at Demow Barua Changmai Gaon. Their swab samples were sent to the ICMR Laboratory at Lahowal of Dibrugarh district on Thursday. As per the information received from Dr.S Ullah, SDM&HO of Demow Block Primary Health Centre, the swab samples of all three tested negative. According to sources, five people came from Jharkhand to Demow on Saturday and they were sent to the quarantine centre in Sivasagar Polytechnic Institution. At present, there are 10 people in this quarantine centre.