13 May 2021. The HCMC Government asked the municipal departments of Police and Health along with relevant units and local authorities of districts and Thu Duc City to re-establish Covid-19 monitoring and control stations in land, sea border crossings throughout the city.https://sggpnews.org.vn/health/hcmc-reestablishes-covid19-control-stations-in-land-sea-border-crossings-92250.html