According to the guidelines, the time of medical quarantine is decreased from 21 days to 14 days for direct contacts (F1 cases) of confirmed COVID-19 patients (F0) The guidelines are also applied for foreign arrivals, except for arrivals for business purposes with duration of stay shorter than 14 days, and other cases of entries in accordance with other regulations of the Immigration Department and the National Committee for COVID-19 Prevention and Control. However, they would need to continue to monitor their health status for the next 14 days. Local authorities are ordered to manage and supervise the isolation period and follow-up medical observation period to ensure no cross-infection or virus spread in the community. The ministry also told local administrations to consider conducting trials of home quarantine of F1 cases, hold training and provide instructions via video clips or other materials, strictly and frequently manage the isolation processes to ensure disease prevention and control. A review of the pilot period is required to consider the implementation of the model on a larger scale, the health ministry noted./.