Delta COVID variant accounts for 20% of cases in US

The strain has been found in at least 47 states, which has appeared to spark outbreaks in areas with lower vaccination rates, and is responsible for half the new cases in parts of the Midwest and West.
2:45 | 06/23/21

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Transcript for Delta COVID variant accounts for 20% of cases in US
We have a lot of news to get to and the delta variant, there's so many questions and concerns. We're going to talk to Dr. Ashish jha in a moment as health officials push to get young people vaccinated. Even though 62% of eligible Americans have received at least one dose of the vaccine it's that crucial group of unvaccinated young folks that are the key to putting an end to the pandemic. It's accounting for 20% of the new cases doubling over the past few weeks. Scientists are also concerned about the delta plus variant now emerging. Eva pilgrim starts us off this good morning, Eva. Reporter: Good morning, robin. The delta variant now accounts for one out of every five new cases here in the U.S. And health officials say the vaccines are key to stopping these variants and putting an end to this pandemic. This morning, concern growing over the delta variant which now accounts for about 20% of all new cases here in the U.S. The numbers doubling every two weeks. Good news, our vaccines are effective against the delta variant. We have the tools so let's use them and crush the outbreak. Reporter: The delta variant reported in at least 47 states already appearing to spark outbreaks in areas with lower vaccination rates responsible for half the new cases in parts of the midwest and west. What we're seeing now are the patients who are coming in who don't think that they're going to get sick from it. Who aren't mentally prepared to make life and death decisions, do they want to be intubated? Do you want cpr if your heart should stop? Reporter: As the delta variant is also mutating. A new one seen in interkwoo. Health officials watching to see how quickly it spreads. Health officials say the key to crushing the pandemic, young people. Right now only about a third of 18 to 24-year-olds have been fully vaccinated. But that age group is currently seeing the country's highest rate of cases, tied with 25 to 34-year-olds. The reality is many younger Americans have felt like covid-19 is not something that impacts them and they've been less eager to get the shot. Reporter: Meanwhile the CDC is expected to meet today to review the risk of a rare heart condition among teens and young people after they took the vaccine. More than 300 cases have been reported. More than 20 million teens and young adults have been vaccinated. And health officials are trying to reach those younger audiences right where they are here on their cell phones on social media using tiktok and Instagram influencers to spread the message hoping to encourage them to get the vaccine. George. So important. Let's bring in Dr. Ashish

This transcript has been automatically generated and may not be 100% accurate.

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