Experts say it could be 2023 or later before coronavirus vaccine shots are widely available in some countries.

The United States, Israel and the United Kingdom are among the nations where about half or more of the population has gotten at least one shot. In some countries, including South Africa, Pakistan and Venezuela, less than one per cent of people have been vaccinated. In nearly a dozen countries — mostly in Africa — there have been no jabs at all.

“The US, European and other wealthy nations long ago pre-ordered nearly all the doses available and now other countries, even with the money to buy, are at the back of the line waiting,” said Matthew Kavanagh, a global health policy expert at Georgetown University.

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