vaccines, the network said.Biden will make a direct appeal in support of the effort, while Obama will be joined by basketball greats Charles Barkley and Shaquille O’Neal to reinforce the role of vaccines in allowing Americans to get their lives back on track.Former first lady Michelle Obama will team with Miranda, Faith Hill and Jennifer Lopez in support of shots during the hour-long special hosted by spouses Russell Wilson, the NFL quarterback, and actor-singer Ciara.Other announced highlights