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Articles on COVID-19 vaccines and variants

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Vaccines don’t ward off every single infection but they do massively lower the risk. Education Images/Universal Images Group via Getty Images

What is a breakthrough infection? 6 questions answered about catching COVID-19 after vaccination

Vaccines can’t provide 100% protection, so it’s not a failure or surprise when some vaccinated people get sick with COVID-19. The good news is their cases are much less likely to be severe or fatal.
Luis Ascui/AAP

What’s the ‘Indian’ variant responsible for Victoria’s outbreak and how effective are vaccines against it?

The COVID-19 variant responsible for Victoria’s latest outbreak is one of three Indian variant sub-types, which spreads more easily than the original strain. Here’s what we know so far.

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