Is it time to roll up our sleeves for a fourth COVID-19 dose?
Let's connect the dots.
Some countries like the US are starting to offer a fourth dose of the COVID-19 vaccine. Right now, only Americans who are 50 and older or anyone who is immunocompromised is eligible for another shot.
But a new study from Israel shows a fourth dose might not provide a lot of protection.
The study finds that while an additional Pfizer shot does offer protection against serious illness for at least six weeks, it only provides about four weeks of protection from infection.
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