The World Health Organization has called on countries to suspend vaccination against COVID-19 to strengthen vaccination so that poor countries can catch up with vaccination rates as soon as possible.

Who Director-General Tan Desai said at a press conference on Wednesday that the third dose of the vaccine should be suspended at least until the end of September. The move will help World Health Organization (WHO) achieve his target of no less than 10 per cent vaccination rate in each economy by that date, thereby protecting health care workers and vulnerable people.

"I understand that all governments want to protect their people from the delta mutation, but we cannot and should not accept that countries that already occupy most of the world's vaccines need to use more vaccines when the world's most vulnerable people are not protected," Tan Desai said.

Israel last week became the first country to promote intensive injections on a large scale in an effort to contain a resurgence of the epidemic since it was first actively vaccinated against COVID-19 in December. Countries such as Sweden and Greece are also considering strengthening needle programs.

"We don't have complete evidence of whether this is necessary," said Kate O'Brien, head of World Health Organization (WHO) 's vaccine department. "it's a very big decision. It is important for us to be clear about what the data is, and if we do not act on clear data, then we will never be sure what we should actually do. "

The main reason for the increase in the number of infections is not the failure of the vaccine, but the relaxation of other medical measures, she added.