Q&A: CDC study shows COVID vaccine efficacy has dropped

A new study released by the Centers for Disease Control this week, showed that as the Delta variant became the dominant strain effectiveness dropped from 91% to 66%. More local videos here: https://bit.ly/2Pa0d1l Subscribe to NEXT: http://bit.ly/2eP1GwI Stay connected: 9NEWS Website: http://www.9news.com/ Facebook:   / ilike9news   Twitter:   / 9news   Instagram:   / 9newsdenver   Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado