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A study by the University of Texas Medical Branch, in partnership with Kaiser Health News, reveals that Pfizer's COVID-19 vaccine is effective against a virus mutation. The study involved blood samples from 20 clinical trial participants. While results are promising, more data is needed. Meanwhile, Moderna's CEO claims their vaccine may offer protection for years, as antibodies decay slowly. Moderna is also close to proving its vaccine's effectiveness against new strains from the UK and South Africa. The Moderna vaccine has been authorized for use in the UK.

What does the new study show about Pfizer's coronavirus vaccine?

How effective is the Pfizer vaccine against mutations of the virus according to the study?

What did Moderna's CEO say about the longevity of the vaccine's protection?

What are the new strains of the virus mentioned in the study?

What is the current status of Moderna's COVID vaccine in the UK?