‘Unprecedented achievement’: who received the first billion COVID vaccinations?

A health worker inoculates a man with a COVID-19 vaccine at a health post near Lukla

A Nepalese man receives a COVID-19 vaccine at Lukla near Mount Everest in the Himalayas.

The world has reached the milestone of administering one billion doses of COVID-19 vaccines, just four months after rollouts began in countries such as the United States and United Kingdom, and the World Health Organization (WHO) approved the first vaccine for emergency use. The speed at which they have been administered is remarkable, but unequal distribution of the vaccinations highlights global disparities, say researchers.

“It is an unprecedented scientific achievement. Nobody could have imagined that, within 16 months of the identification of a new virus, we would have vaccinated one billion people worldwide with a variety of different vaccines, using different platforms and made in different countries,” says Soumya Swaminathan, the WHO’s chief scientist, based in Geneva, Switzerland.

As of 27 April, 1.06 billion doses had been given to 570 million people, which means that about 7.3% of the world’s population of 7.79 billion have received at least one dose. But scientists say that more than 75% of the world’s population will need to be vaccinated to bring the pandemic under control.

DIVIDED BY DOSES. Graphic showing the distribution of the 1 billion COVID-19 vaccines, 25 April 2021.

Source: Our World in Data

Highlighting inequality

The uneven distribution of vaccinations, both within and between nations, threatens to slow progress towards this goal. “It’s absolutely amazing that in a short time we developed multiple vaccines and gotten a billion doses administered, but the way it’s happened has worsened inequities around the world,” says Krishna Udayakumar, associate director for innovation at the Duke Global Health Institute in Durham, North Carolina.

About three-quarters of all doses have gone to just ten nations (see ‘Divided by doses’). China and the United States alone account for nearly half of all the doses given out, but just 2% have gone to the entire continent of Africa.

Ensuring global vaccine equity is a matter of self-interest for high-income countries in beating the pandemic, says Peter Hotez, a vaccine scientist at Baylor College of Medicine in Houston, Texas. “You can’t do that with under a dozen countries fully vaccinated,” he says. “In terms of saving lives and restoring the global economy, we need places like Myanmar and Papua New Guinea to be successful.”

RACING AHEAD. Chart showing the top 10 countries that are leading the way in providing vaccines for their populations.

Source: Our World in Data

Global response

Disparities also exist within nations see (‘Racing ahead’). For example, one UK study found that, of 1.1 million people aged over 80 who were treated for health conditions in clinics and hospitals between December and January, 42.5% of white participants had been vaccinated, compared with just 20.5% of Black participants. The same study also found evidence of divides along socio-economic lines.

“Vaccinating only portions of the population is not an effective strategy, and leaves us vulnerable to new variants,” warns Udayakumar. “A global pandemic can only be met with a global response.”

Global vaccine manufacturers are scaling up production to meet demand, but this might take another 6–12 months to achieve, he says. Nevertheless, we are likely to hit the two-billion mark much faster than we hit the first billion, adds Swaminathan.

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