Health officials say the number of documented COVID-19 cases has doubled since Thanksgiving while experts remain concerned over the spike in cases alongside RSV and flu infections. KTLA’s Mary Beth McDade reports on Dec. 7, 2022. Get Los Angeles breaking news, entertainment, weather, traffic and sports from L.A.'s Very Own, KTLA 5 News. Keeping Southern Californians informed since 1947. Online: https://ktla.com/