Transcript for Madison Square Garden hosts first concert since pandemic began
George? Thank you. T.J.? Over the weekend normalcy? Did you see some of these sights? Packed concerts, sporting events. That concerning delta variant is spreading through low vaccinated areas throughout the country. Eva pilgram is outside Madison square garden here in New York who held its first concert last night. What a sight to see, a packed house at Madison square garden. Reporter: That's right, T.J. The garden was jam packed. Thousands of concert Goers here at the garden. A return to normal. Concerts back at Madison square garden for the first time in 15 months. The foo fighters playing a sold-out concert Sunday night. Part of the admission, proof of vaccination. inside, no social distancing, no masks. New York's positivity at .3%, the lowest since the start of the pandemic. In L.A. The first full capacity soccer game in over a year. More than 23,000 fans packed the stadium. This morning growing concern as the new highly contagious delta variant has been contracted in 45 states. It accounts for 10% of cases in the U.S. This as experts see the emergence of two nations, the vaccinated and unvaccinated. Those at greater risk, the places with the lowest vaccination rates. We could see the emergence of two nations, the northeast have vaccinated enough people to halt virus transmission. Just like last summer when we saw a surge in the south, we could see that again because such a low percentage of the population is immunized. Reporter: The delta variant fueling outbreaks in places like southwest Missouri, seeing a 46.5% rise in cases in the last two weeks. The patients are younger and sicker, the people not vaccinated. Reporter: Looking at the current trends, it appears the country will miss president Biden's goal of 70% of American adults partially vaccinated by July 4th. Robin? Seems that way. Eva, thank you.
This transcript has been automatically generated and may not be 100% accurate.