The Director-General of the World Health Organization, Tedros Adhanom Ghebreyesus, called on Wednesday for a freeze on booster doses of vaccines against the coronavirus to put them at the disposal of countries that have immunized only a small part of their population.

He said during a press conference of the World Health Organization held in Geneva, "We need to quickly reverse the situation and move from directing the majority of vaccines to rich countries, to directing the majority of them to poor countries," stressing that the freeze should continue "until the end of September at least."

For months, the head of the United Nations has been denouncing the inequality in the distribution of vaccines, as 1.5 people out of 100 in poor countries received a dose of a vaccine, compared to 100 out of 100 in rich countries.

With his call, he was commenting on Germany and the Israeli Occupation's announcement of campaigns to provide a third dose (vaccines require two first doses), also called a "booster dose."

In May, WHO's Director-General launched a challenge to vaccinate 10 percent of the world's population by September.

"To achieve this, we need the cooperation of everyone, especially (a group) of countries and companies that control the production of vaccines globally," said Tedros Adhanom Ghebreyesus.

He called on major pharmaceutical companies in particular to support the COVAX mechanism established to combat inequality in the provision of vaccines, and in particular to help 92 poor countries to immunize their populations.

But so far, the mechanism has been unable to perform the task due to the lack of doses, and it has distributed only a small part of what was initially planned.

Of the four billion doses administered around the world, 80 percent went to high- and middle-income countries, while less than 50 percent of the world's population lives there.

The commissioner for the COVAX mechanism within the WHO, Bruce Aylward, acknowledged that the end of September is an ambitious goal that may not be achieved.