Study: Mutation found that makes Delta variant more deadly

A certain mutation in the COVID-19 Delta variant causes infected cells to form disruptive chunks in the lungs and leads to ...
ABC7 San Francisco

Is the mu variant worse than delta? What to know about COVID-19 mutations

The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...