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Study says vaccinated people easily spread Delta variant in households, COVID vaccine protection wanes earlier than previously believed

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The Delta variant of COVID-19 can transmit easily from vaccinated people to members of their households, a year-long British study found. Scientists at the Imperial College London published a study in the Lancet Infectious Diseases medical journal on Thursday that discovered that the efficacy of the COVID-19 vaccine wanes earlier than previously believed.

The study involved 621 people in the U.K. and found that their peak viral load was similar regardless of vaccination status.

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