Parents, doctors, and even President Joe Biden have voiced their concern about the growing number of children who are getting Covid-19. Children have largely been spared the worst of Covid-19 -- hospitalizations and deaths are still rare -- but cases have been rising, and without a vaccine, they remain vulnerable.
Mandatory Credit:	Patrick T. Fallon/AFP/Getty Images

Parents, doctors, and even President Joe Biden have voiced their concern about the growing number of children who are getting Covid-19. Children have largely been spared the worst of Covid-19 -- hospitalizations and deaths are still rare -- but cases have been rising, and without a vaccine, they remain vulnerable.
Mandatory Credit: Patrick T. Fallon/AFP/Getty Images

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Parents and pediatricians are growing impatient for a Covid-19 vaccine for younger children

Dr. Bud Weidermann runs one of the US pediatric trial sites for a Covid-19 vaccine and the question coming from parents now isn't about the vaccine itself, but rather, what exactly is taking so long?