Two out of five Vietnamese workers who suffered an anaphylactic reaction after receiving the second dose of the COVID-19 Vero Cell vaccine at Nong Cong district’s Medical Center, Thanh Hoa province on the afternoon of November 23 died, the other three are under emergency treatment, Vietnam’s state-run media quoted information from Thanh Hoa province’s Steering Committee for COVID-19 Prevention and Control on November 24.
According to the news, workers, and employees of Kim Viet Shoes Co., Ltd. are all screened and counseled about vaccines as well as possible reactions before injection.
However, five seriously ill people were taken to the emergency room at Thanh Hoa province’s General Hospital, of which two did not survive on November 24.
Thanh Hoa province’s Department of Health said that the department has directed the Professional Council to assess the cause of the accident and is waiting for the conclusion of the Professional Council, and has also reported to the Ministry of Health for guidance.
Also on November 24, the online newspaper Phap Luat published an interview with Assoc. Dr. Do Van Dung, Dean of the Faculty of Public Health, University of Medicine and Pharmacy, Ho Chi Minh City, said that it is necessary to strengthen the third dose for people who have been injected with two previous doses of China-made Vero Cell.
Mr. Dung analyzed that, according to research from some countries, for the elderly, with underlying diseases, and with lower immunogenicity, the effectiveness of the Vero Cell vaccine is also shorter than other vaccines used mRNA technology such as Pfizer or Moderna.
Dung also quoted Malaysian Health Minister Khairy Jamaluddin: “The effectiveness of vaccines decreases over time, but Vero Cell’s decreases faster, so a booster shot is needed sooner.”
According to the recommendation, Ho Chi Minh City needs to give people three injections of Vero Cell at the beginning of December because the first dose was injected in August and the second dose in September, so the optimal validity period of three months for Vero Cell is coming soon.