Twenty-three percent of the latest infections in Vietnam are asymptomatic, the government said. The country of 96 million has confirmed 621 infections, with six deaths.
The Prime Minister said early August was a “decisive time” to contain the new outbreak, which could have a more “critical impact” than previous waves of infection. Vietnam carried out 52,000 tests for the coronavirus in seven days last week, according to official data.
The government said it planned to test Da Nang’s entire population of 1.1 million people, part of “unprecedented measures” to fight the pandemic. The city imposed a lockdown at the end of July, closing entertainment venues and banning movement in and out of the city.
Authorities said on Sunday that the coronavirus strain detected in Da Nang was a more contagious one, and that each infected person could infect five to six people, compared with 1.8 to 2.2 for infections earlier in the year.