The woman, 41, received the second shot of the Vero Cell vaccine produced by China’s Sinopharm at a vaccination site in Buon Me Thuot city of Dak Lak on November 29, a representative of the provincial Centre for Disease Control said.
After being closely monitored at the vaccination site for 30 minutes, she returned home without any abnormal symptoms.
However, one of the woman’s relatives found her ‘in an unconscious state’ early on November 30 and immediately took her to Tay Nguyen General Hospital for emergency treatment.
At the hospital, the woman did not survive and doctors confirmed she had died of unknown causes before hospitalisation.
The victim was said to have suffered from nephrolithiasis or kidney stone.
This is the fifth adult victim of COVID-19 vaccination in Vietnam.
Earlier, four employees of a shoemaking company in Thanh Hoa province also died after being given a Vero Cell shot.
Also on November 30, a 12-year-old boy in Binh Phuoc province, southern Vietnam, died following a Pfizer shot. He was the third young victim of COVID-19 vaccination in Vietnam.