The international community will not recover “until 2022”, according to one of the UN’s top doctors.
Helen Rees, a member of the UN panel on cholera, said early detection of the disease would not have a significant impact on new strains.
As a result, as she told the BBC, the impact of the vaccine will not be strong until 2022.
The professor said the final Novavax and Janssen vaccine showed signs of success over a new type of corona found in South Africa.
However, she said health experts were concerned about AstraZeneca and Pfizer vaccines because they used the original virus from China, while new strains were being introduced in the country.