With just hours left of his presidency, Joe Biden issued preemptive pardons to Dr. Anthony Fauci, retired Gen. Mark Milley and members of the House Jan. 6 committee.
"If you want to be optimally protected, absolutely get a booster," he said.
"The question is, will we be prepared for it?" Fauci said.
According to WHO, only 7.5% of people in low-income countries have received at least one dose of the coronavirus vaccine.
Fauci is warning that waning immunity combined with delta will make for a "double whammy" that will impact "even the vaccinated."
"If you get vaccinated and your family's vaccinated, you can feel good about enjoying a typical Thanksgiving, Christmas with your family and close friends," Fauci said.