Vaccinated Americans Could Be Able To Socialize Under New CDC Rules

The CDC is finalizing new guidelines as vaccinations surpass 80 million. While small home gatherings may not require masks, public mask-wearing and social distancing are still advised for the fully vaccinated. Despite a decline in cases, the CDC warns against complacency due to potential virus spread. Vaccines for teens and children are in trial phases, with results expected in the summer.

What is the significance of the 27 million Americans mentioned in the text?

What updates are expected regarding COVID-19 vaccines for teens and children?