Hải Phòng police investigate a group for illegally collecting blood sa… stockbot 0 88 2023.08.21 16:23 https://vietnamnews.vn/society/1582706/hai-phong-police-investigate-a-… + 3 https://vietnamnews.vn/rss/society.rss + 5 They offered each student VNĐ100,000 (US$4.2) for agreeing to the blood test and an additional VNĐ25,000 for referring other students.