French study of over 22m people finds vaccines cut severe Covid risk by 90%
by Kim Willsher in Paris from Science | The Guardian on (#5QKDX)
Largest study of its kind also finds vaccines appear to protect against worst effects of Delta variant
Vaccination reduces the risk of dying or being hospitalised with Covid-19 by 90%, a French study of 22.6 million people over the age of 50 has found.
The research published on Monday also found that vaccines appear to protect against the worst effects of the most prevalent virus strain, the Delta variant.
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