so they can scale up quickly if approved. but this is a process that takes time. and he says they're hoping they'll know if any vaccine will succeed by late fall or early winter. >> mary, thank you. dr. fauci was pressed on the virus and children, and the concern over the dangerous condition that many doctors believe is connected to the virus. at least 13 states now reporting cases. the governor of new york talking about three children who were lost to the condition. dr. fauci warning there is still a lot we do not know. here's stephanie ramos on that part of the story. >> reporter: when bobby dean got covid-19, he never had any respiratory symptoms. instead, the 9-year-old was hospitalized with a fever, rash, irritated red eyes, and he couldn't hold down food. >> he was just crying out in pain anytime anyone got near his belly, his belly hurt so bad. >> reporter: bobby's now recovering after receiving medications used to treat a