What this 'canary in the coal mine' Covid-19 outbreak shows us about the virus

A Covid-19 outbreak in Provincetown, Massachusetts, is highlighting the importance of being vaccinated as the vacation destination's cluster has seen no deaths and only four hospitalizations. However, the outbreak is driving new guidance from the CDC after demonstrating how transmissible the Delta variant is.

source https://www.cnn.com/videos/health/2021/07/31/coronavirus-pandemic-outbreak-vaccinations-holmes-pkg-ndwknd-vpx.cnn