Health

Sequencing imported human virus genes to find Omicron variant


The Ministry of Health asked localities to review all imported cases from November 28 to now that have tested positive, and sequence the virus gene to identify the Omicron variant.

The proposal was stated by the Ministry of Health in an official dispatch sent to localities on December 17, guiding the surveillance and prevention of the Omicron variant of Covid-19. Up to now, Vietnam has not recorded any cases of Omicron variant, but the risk of pathogens entering is very large.

Local People’s Committee, Institute of Hygiene and Epidemiology, Pasteur Institute checked all people who entered the country from November 28 with positive nCoV test results by NAAT and PCR methods within 14 days from the date of entry; epidemiological assessment, sampling for testing, and viral gene sequencing to identify Omicron variants.

“In case a person is found to be positive for the Omicron variant, they will continue to review and take a sample to test the person who has been in close contact and has had a positive test result for nCoV before, and sequence the virus gene to identify the Omicron variant.” requested by the Ministry of Health.

The localities shall immediately organize the injection of the allotted amount of vaccine, focusing on those who have not been injected or have not given enough doses; injecting additional doses, strengthening for the risk group.

On November 24, the World Health Organization (WHO) recorded the Omicron variant in South Africa. This is a new variant classified as VOC (worrisome), initially assessed for its ability to spread quickly, evade the immune system, difficult to diagnose, identify, affect monitoring. surveillance and epidemic prevention. As of December 17, 77 countries/territories have recorded cases of Omicron variant.

In a statement yesterday, British government medical adviser Professor Neil Ferguson said there was no evidence that Omicron was less severe than Delta, warning the new strain “soon poses a major threat”. According to experts, even in the case of Omicron causing mild symptoms, its infection rate is still likely to cause an increase in hospital admissions.

In Vietnam, many provinces and cities have planned to respond to the Omicron mutation. Ho Chi Minh City requires passengers on international flights to have a negative test within 72 hours; People from the country have recorded Omicron forced isolation to prevent new strains.

Le Nga