The new move follows the resurgence of SARS-CoV-2 on April 29 in which three persons, including an Indian expert, a Vietnamese national and a Chinese expert, who completed the compulsory quarantine have infected nearly 30 others.
Vietnam has imposed the mandatory 14-day quarantine and required the next 14-day self-isolation with medical supervision at home by health authorities.
Dr Tran Van Phuc at Saint Paul Hospital in Hanoi said the 14-day quarantine is suitable as the majority of Covid-19 patients have a median time of five days from exposure to symptoms onset, only 10% have the incubation period longer but less than 14 days, and just few having the incubation of 21 days.
The resurgence of SARS-CoV-2 has forced Vietnam to activate the Covid-19 alert system, requiring all stakeholders to the fight against the pandemic.
At present, Vietnam is quarantining nearly 40,000 people who are Vietnamese returnees, foreign diplomats, experts, and high-skilled workers.