Recent studies have shown that the effectiveness of Covid-19 vaccines is decreasing, though experts say the shots still work well. We explain what the numbers mean and why they don’t tell the full story.

Recent studies have shown that the effectiveness of Covid-19 vaccines is decreasing, though experts say the shots still work well. We explain what the numbers mean and why they don’t tell the full story.

September 29, 2021

Recent studies have shown that the effectiveness of Covid-19 vaccines is decreasing, though experts say the shots still work well. We explain what the numbers mean and why they don’t tell the full story.

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