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Are COVID booster shots needed? Here’s what you should know – Al Jazeera English

Some rich countries are preparing COVID vaccine boosters as lower-income countries struggle to vaccinate at-risk groups.

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As the world continues to battle the COVID-19 pandemic amid the spread of the highly contagious Delta variant, several governments are preparing vaccine booster drives.
Countries including Israel, the United Kingdom and the United States, which have already…

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