KNTV NBC Nightly News With Lester Holt April 1, 2021 00:37:00
Cases surge. here in the u.s., covid was the third leading cause of death in 2020. nationwide, new infections rising 17%. >> the cases are coming into the e.r., into the clinic, people are younger, but we feel it >> reporter: many of the newly infected, say doctors, are those who recently traveled. a new study also showing high-risk americans don't regularly wear masks >> as a doctor, i'm horrified. we know what works we know what doesn't work >> reporter: tonight as the virus threatens to make another surge, vaccines are offering hope and soon the youngest of americans may also be protected t...