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Reinfection

Reinfection will be part of the pandemic for months to come. Each repeat illness raises the risk of long COVID

Image: Shutterstock/Elizaveta Galitckaia The latest Omicron variant BA.5 is fast becoming dominant worldwide, including in New Zealand and Australia. As it continues to surge, reinfection will...

Why are there so many new Omicron sub-variants, like BA.4 and BA.5? Will I be reinfected? Is the virus mutating faster?

Image: Shutterstock By now, many of us will be familiar with the Omicron variant of SARS-CoV-2, the virus that causes COVID. This variant of concern has changed...

How long does immunity last after COVID vaccination? Do we need booster shots? 2 immunology experts explain

  Picture: Lukas Coch/AAP An important factor in achieving herd immunity against SARS-CoV-2 (the virus that causes COVID-19) is is how long the vaccines protect you. If a...
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