21 December 2021. The surge of new COVID-19 infections in Hanoi in recent days has strained local health units, causing delays in giving support to a certain number of patients who are now struggling to find treatment at home through online advice.https://tuoitrenews.vn/news/society/20211221/certain-covid19-patients-resort-to-selfmedication-as-hanoi-health-units-overwhelmed/64832.html