Just when there was a palpable sense that everything might be OK, the highly contagious Delta variant of COVID-19 came along.

The race to vaccinate more people is now even more urgent; healthcare workers who are seeing more patients say another surge is entirely preventable, if only more people would get vaccinated.

Guest: Lesley McClurg, KQED science reporter

Read the episode transcript here.

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The Race Against Time to Stop the Delta Variant in the Bay