Infectious disease expert Katherine L. Baumgarten, MD, explains when we can expect to reach heard immunity with the COVID-19 vaccine. To learn more about the COVID-19 vaccine, go to: ampCoronavirusCOVID-19COVID-19 immune systemCOVID19healthhealth and wellnesshealthcareHealthcare InnovationHerdherd immunityHospitalimmune systemIMMUNITYInnovating HealthcaremedicalmedicineOchsnerOchsner Health SystemOshnerRenshcoVaccinevideoVITAMINvlogYouTubeRelated 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