US tops 4,000 daily deaths from coronavirus for 2nd time in 4 days

The United States surpasses 4,000 COVID-19 daily deaths for a second time in four days, according to John Hopkins University. This, was the World Health Organization warns herd immunity won't happen in 2021, even with vaccines. Dr. Robert Citronberg, the executive medical director of infectious disease ad prevention for Advocate Aurora Health joins FOX6 WakeUp with more information.