Apa yang perlu diketahui tentang flu burung di tengah lusinan kasus pada manusia di AS

CBS News medical contributor Dr. Celine Gounder joins “CBS Mornings” to discuss the latest on bird flu as new cases raise alarms among health officials. There have been 53 confirmed human cases across seven states this year. Health officials in California are reporting a possible case in a child who had no known contact with an infected animal.