Moderna's coronavirus vaccine is still doing its job. But when it comes to the COVID-19 variant first found in South Africa, there could be some room for improvement.
More transmissible variants of COVID-19 first appeared overseas in the past month, and have since been found in the U.S. Both the Pfizer and Moderna vaccines have been found effective against the B.1.1.7 variant that was first found in London, and Moderna has confirmed it found no reduction in antibodies when its vaccine was used against that strain. But when researching the B1.351 strain, Moderna saw a sixfold reduction in antibodies produced, a study released Monday indicates.
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