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The article from The Telegraph compares the Pfizer, Moderna, and AstraZeneca COVID-19 vaccines, focusing on their effectiveness against the original virus and emerging variants. Each vaccine has a different mechanism, with Pfizer and Moderna utilizing mRNA technology, while AstraZeneca uses a viral vector. Their effectiveness rates vary, but all three are crucial in combating the pandemic. The discussion also highlights ongoing research into how well these vaccines protect against new variants like the UK strain.
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