When the slew of variants popped into existence last year, scientists began worrying what it could mean for vaccine resistant variants down the line.So far, the Delta variant has remained top dog. While it is much more infectious than the original coronavirus, thankfully it doesn't evade our vaccines by much.But what about down the line? As more and more of the world is vaccinated, will the virus find a way to evolve to get around vaccines? That’s on today’s Coronacast.Also on today’s show:* Lockdowns return to Europe* How is Japan doing such a good job?* What side effects can I expect from my Pfizer booster shot if I had AstraZeneca for my first and second shot?

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