Các câu ví dụ cho từ vaccines

1. An expert at the Ministry of Health, who asked to remain anonymous, said that global studies have shown that the Covid-19 vaccination only reduces symptoms, but does not prove to reduce the risk of infection, as with the AstraZeneca and Pfizer vaccines.

2. Of these, the first batch of Covid-19 vaccines derived from Covax, including 811,200 doses, will reach customers early next month, the Central Institute of Hygiene and Epidemiology said.

3. The Ministry of Health makes this proposal in the draft of a decision to be promulgated by Prime Minister Pham Minh Chinh on developing Covid-19 vaccines.

4. It calls for speeding up research, trial and production of vaccines in Vietnam and tying up with foreign vaccine producers for either technology transfer or import.

5. Currently four indigenous Covid vaccines are being developed by Nanogen Pharmaceutical Biotechnology JSC, the Institute of vaccines and Medical Biologicals (IVAC), Vaccine and Biological Production Company No.

6. 1 (Vabiotech), and the Center for Research and Production of vaccines and Biologicals.

7. Pre-clinical trials by Nanogen, IVAC and Vabiotech have showed the vaccines are safe for use on animals and are immunogenic.

8. An unnamed official from the World Health Organization (WHO) said Vietnam is one of a number of countries that are delaying vaccination because of doubts about the importance and safety of vaccines for their children.

9. It is the first time Vietnam allows mixing different types of Covid-19 vaccines through multiple shots, though the decision has already been observed in several countries around the world.

10. However, the WHO on Monday advised against people mixing and matching Covid-19 vaccines from different manufacturers, calling it a "dangerous trend" since there was little data available about the health impact, Reuters reported.