The case of District 7 was infected with the Indian variant, the lady who sold the restaurant had the British variant chủng

Ho Chi Minh CityThe Hospital for Tropical Diseases in Ho Chi Minh City sequenced the viral gene of “patient 4583” (case of District 7) which recorded the variant B.1.617.2 from India, “patient 4780” (a restaurant saleswoman in District 3). infected with strain B.1.1.7 from the UK.

Doctor, Doctor Nguyen Van Vinh Chau, Director of the Hospital for Tropical Diseases in Ho Chi Minh City, on the evening of May 21, said that this result was obtained by the hospital’s Covid-19 research team and the Oxford University Clinical Research Unit. OUCRU) decode RNA samples extracted from oropharyngeal swabs of “patients 4583” and 4780.

The obtained results were analyzed and identified by Pangolin software, showing that the viral genome of “patient 4583”” – 34-year-old woman living in District 7, belonging to strain B.1.617.2, similar to that recorded in “patient 4514” – young man from Thu Duc city, before. These are two co-workers. company in District 3. The female patient had been to Hai Phong from April 24 to May 5, returned to Ho Chi Minh City to go to work before being found positive for nCoV on the evening of May 18.

According to Dr. Chau, combining the two virus decoding results with epidemiological information, it is possible to confirm that “patient 4583” and “4514” have the same source of infection.

“The mutation of these two patients is similar to the one that is causing epidemics in the northern provinces,” said Dr. Chau.

“Patient 4780” – The woman selling the restaurant lives in alley 287, Nguyen Dinh Chieu street, district 3, infected with B.1.1. The hospital is continuing to sequence the virus genes of her two children, including “patient 4781” and “4782”. All three were confirmed to have Covid-19 on May 20.

According to Dr. Chau, strain B.1.1.7 from the UK is circulating in Da Nang and Ha Nam, and has now spread to the central provinces. In Ho Chi Minh City, this strain was detected on “patient 1660” (a 28-year-old man from Hai Duong, discovered on January 29) and “patient 2910” (a 28-year-old young man from Ha Nam, discovered on January 29) disease on April 29), was isolated and treated at the former Cu Chi Field Hospital.

“This is the first time that Ho Chi Minh City has recorded the simultaneous circulation of two strains believed to be capable of spreading rapidly, including the Indian and British strains, in community cases,” said Dr. identify.

Up to now, Vietnam has recorded a total of 7 strains of nCoV, including: B.1.222, B.1.619, D614G, B.1.1.7, B.1.351, A.23.1 and B.1.617.2.

In the past four days, Ho Chi Minh City recorded 5 cases of Covid-19 in the community, patients 4514 and 4583 – colleagues from the same company in District 3; three cases 4780-4782 are parents and children in alley 287 Nguyen Dinh Chieu street, district 3, and one suspected case is a 63-year-old man, living in ward 8, Go Vap district. As of today, the majority of people who came into contact with these cases, are negative for nCoV.

Vietnam is experiencing the 4th outbreak since 2020, the total number of community infections from April 27 to now has increased to 1,893, recorded in 30 provinces.

Testing for Covid-19 at the Hospital for Tropical Diseases in Ho Chi Minh City. Image: Quynh Tran.

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Le Phuong