Moderna says their COVID-19 vaccine triggered an immune response just as effective in the elderly as younger adults. Internal medicine physician Dr. Shoshana Ungerleider joined CBSN with more. AstraZenecaCoronavirusCOVID-19COVID-19 immune systemCOVID19Dr. Shoshana Ungerleiderelderlyimmune systemIMMUNITYinternal medicine physicianModernaModerna39spandemicPROMISINGVaccinevaccine trialsvideoVIRUSVITAMINvlogYouTubeRelated Posts COVID’s New Variant Is Spreading Faster Than Expected April 18, 2026 COVID’s New Variant Is Spreading Faster Than Expected April 16, 2026 These Aren’t Just Hormone Problems April 16, 2026 New COVID Variant ‘Cicada’ Spreading Across U.S. | Seniors at Highest Risk April 15, 2026 Persistent immune activation and MS explosion #diseaseprevention April 13, 2026 Cicada COVID Variant Spreading in U.S. | What Doctors Want You to Know Now April 12, 2026