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Question: What are Covid-19 vaccine breakthrough infections or vaccine escapes? Why is this happening now?

When a fully vaccinated person becomes infected with the coronavirus, the primary concern lies with the unvaccinated population. In the U.S., nearly all COVID-19 hospitalizations and deaths occur among those who have not been vaccinated, clearly indicating the effectiveness of the vaccines as the main reason for getting vaccinated.

Another concern is the Delta variant, which has become the dominant strain worldwide and is more contagious than the Alpha variant. New data from the CDC shows that individuals infected with the Delta variant may carry enough virus in their noses and throats to transmit it to others. CDC Delta variant information  

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