According to HCDC, by the end of June 27, the number of infections detected from the quarantine area from the 4th epidemic wave was 1,826.

HCDC determined that 55.8% of cases detected positive for the first time, immediately after being transferred to the centralized quarantine area, were cases previously infected with F0.

`The current incubation period of nCoV is still recorded as 14 days,` an HCDC representative analyzed.

The positive test rate when sampling the first, second, and third times according to statistics from infected cases recorded in the quarantine area is 96.6%.

`Investigations in quarantine areas showed that there was no cross-infection between different rooms in the quarantine area,` HCDC representative affirmed.

According to HCDC, the majority of positive cases detected in the quarantine area in the first, second, and third testing groups are believed to be pre-existing infections.

The solution to minimize cross-infection in the quarantine area is to only organize centralized quarantine in locations where each quarantine room must have its own toilet, each room must have a maximum of two beds arranged to ensure distance.

Two people are placed in the same room according to the same epidemiological principles.

Set up wifi waves to serve the internet access needs of quarantined people.

The city is quarantining close contacts of the case for 21 days, taking samples for testing 5 times on days 1;

Meanwhile, the Ministry of Health stipulates centralized sampling of quarantined people for testing 4 times, including day 1;

`The city’s health sector is preparing to perform additional rapid antigen tests in between RT-PCR tests for even earlier detection,` according to a HCDC representative.

Centralized quarantine area in Ho Chi Minh City.

Le Phuong