September 21, 2021 6:37 am Johnson & Johnson Says COVID-19 Booster Provides Strong Response Johnson & Johnson released data showing that a booster dose to its one-shot coronavirus vaccine provides a strong immune response US & World Videos 2:33 CDPH releases updated Covid-19 isolation guidelines 1:31 CDC recommends updated Covid shot for everyone ages 6 months and up 2:17 San Diego and California's COVID-19 Emergency Declarations Are Expiring. Here's What That Means 2:30 San Diego and California COVID-19 Emergency Declarations Expire Tuesday 3:26 COVID, Flu Cases Down Slightly; Doctors Urge Caution