In a message on his Twitter profile, he said that the rate of booster doses against the pandemic in high-income countries is close to the rate of primary doses in low-income countries.

This injustice costs lives and only prolongs the disease, warned the WHO chief, who linked to his message a recent analysis of current data on the subject entitled Vaccine equity has not improved much.

Poorer nations still lack immunizers to fully protect their health care workers and the elderly, noted the paper, which compares the progress of national SARS-CoV-2 vaccination campaigns with World Bank income rates.

In four graphs, it reflected inequalities between wealthy, upper-middle-income, lower-middle-income, and low-income states in the administration of vaccines to the total population.

The average anti-Covid-19 biologic coverage in the poorest developing countries is only a fraction of what we see in the rest of the world, he noted.

He pointed out that the wealthier part of the world has caught up, in contrast to low-income nations, which have virtually stagnated, while progress among those with middle incomes has been very slow.

Unfortunately we continue to see huge gaps caused by the considerable lag in vaccination participation among poor nations and their persistently poor protection coverage, said the message.

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