HCM City installs 100 QR-code scanning cameras at COVID-19 checkpoints stockbot 0 252 2021.09.10 17:37 http://vietnamnews.vn/society/1027572/hcm-city-installs-100-qr-code-sc… + 4 https://vietnamnews.vn/rss/society.rss + 2 The HCM City Department of Public Security has installed 100 QR-code scanning cameras at COVID-19 checkpoints to minimise the risk of disease transmission.