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What to Know About BA.4 and BA.5, the New Dominant COVID-19 Subvariants
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What to Know About BA.4 and BA.5, the New Dominant COVID-19 Subvariants

The subvariants are now responsible for 70% of new coronavirus cases, and their immunity to existing vaccines has concerned scientists. Here’s what you need to know about the subvariants.

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What to Know About BA.4 and BA.5, the New Dominant COVID-19 Subvariants
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What to Know About BA.4 and BA.5, the New Dominant COVID-19 Subvariants

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