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Vaccines against covid-19 prevented 20 million deaths worldwide between 2020 and 2021

International

Coronavirus

Agencies | EITB-Media


Of these, almost 7.5 million correspond to countries covered by the COVAX initiative (distribution of the vaccine in poor countries), although it estimates that 1 in 5 deaths in low-income countries could have been avoided if the objectives set by COVAX were met. The OMS .

Euskaraz irakurri: Covid-19aren kontrako txertoek 20 milioi heriotza saihestu zituzten munduan 2020 eta 2021 bitartean

The first study to quantify the impact of covid-19 vaccines on a global scale estimates that they were prevented 19.8 million of the 31.4 million potential deaths in the first year after the introduction of vaccines (December 2020-December 2021) rapidly in estimates based on excess deaths from 185 countries and territories, as published by its authors in The Lancet Infectious Diseases.

It is the first to estimate the impact of vaccination against covid-19 on a global scale and the first to assess the number of deaths evidenced both directly and indirectly. Of those almost 20 million deaths, almost 7.5 million correspond to countries covered by the initiative COVAX (alliance to try to ensure equitable access to the vaccine, especially for low- and middle-income countries). However, failure to meet the COVAX target of vaccinating 20% ​​of the population in some countries is estimated to have caused an additional 156,900 deaths. Although this figure represents a small proportion of total deaths in the world, preventable deaths will focus on 31 African nationswhere 132,700 deaths could have been prevented if the target had been met.

The study calculated that they could be having saved another 599,300 lives if it had been fulfilled objective of the World Health Organization (WHO) to vaccinate 40% of the population of each country with two or more doses by the end of 2021.

Dr Oliver Watson, lead author of the study, from Imperial College London, stressed that the results “show that making vaccines available to people around the world, regardless of their wealth, is likely to save millions of lives.” However, more could have been done.. If it has reached the targets set by the WHO, we estimate that approximately 1 in 5 of the lives it estimates have been lost to COVID-19 in low-income countries could have been saved.”

Despite the incredible speed of vaccine rollout around the world, more than 3.5 million deaths from covid-19 have been recorded since the first vaccine was administered in December 2020.

More deaths were avoided in rich countries

More than three quarters (79%, 15.5 million/ 19.8 million) of deaths averted are due to direct protection against severe symptoms provided by vaccination, which led to reduced mortality rates. It is estimated that the 4.3 million deaths averted are due to indirect protection by reducing transmission of the virus in the population and reducing the burden on health systems, improving access to health care for those most in need. .

According to the study, the impact of the vaccine changed over time and in different areas of the world as the pandemic progressed. In the prime time of 2021, the highest number of deaths prevented by vaccination was observed in lower middle income countries, in the wake of the major oil epidemic in India when the delta variant emerged. Subsequently, the greatest impact was concentrated in the higher income countries In the second half of 2021, restrictions on travel and social mixing will be relaxed in some areas, leading to increased transmission of the virus.

Overall, the estimated number of deaths averted per person was higher in high-income countries, reflecting the earlier and broader use of vaccination campaigns in these areas (2,711 deaths averted per 10,000 people in high-income countries). high-income countries versus 66 deaths averted per 10,000 people in low-income countries). Bone High and upper-middle income countries avoid the ones with the most deaths (12.2 million/ 19.8 million), highlighting inequalities in access to vaccines around the world.




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