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What to know about the COVID-19 delta variant

A nurse draws a syringe full of the

A nurse draws a syringe full of the Johnson & Johnson COVID-19 vaccine at a clinic in Springfield, Mo., in June.   Credit: AP / Springfield News-Leader / Nathan Papes

Citing the spread of coronavirus' more-infectious delta variant, the Centers for Disease Control and Prevention is recommending masks be worn indoors within certain geographic hotspots of infection — even by those who are vaccinated.

What are the new recommendations?

How has the virus spread amid the variant's emergence?

How does the virus affect people who are vaccinated?

What makes the delta variant potentially worse than others?

Why do we keep hearing about new coronavirus variants?

Where was the delta variant first detected?

What are some of the other variants during the pandemic?

I have been fully vaccinated. Will that work against the delta variant?

Are symptoms different than with other variants?