China News Service, January 12 (Xinhua) Comprehensive report. On the 11th local time, WHO experts warned that constantly using the vaccine originally developed for the new coronavirus as a booster is not a feasible way to fight against new mutant strains. Experts called for the development of new vaccines. vaccines to more effectively prevent the spread of the epidemic.
According to the report, an expert panel formed by the World Health Organization (WHO) to evaluate the efficacy of the new crown vaccine said that only using the existing vaccine as a booster to fight against the new mutant strain is not the best way to fight the spread of the epidemic.
The WHO Technical Advisory Group on Covid-19 Vaccine Composition said in a statement, "Vaccination strategies based on repeated escalation of the original vaccine components are unlikely to be appropriate and sustainable. "
The team also noted that, in addition to preventing serious illness and death, there is a need to develop a Covid-19 vaccine that has a good effect on preventing infection and transmission.
Until such a vaccine becomes available, it may be necessary to upgrade existing vaccines as the new coronavirus evolves.