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 Long COVID: Viral Persistence Myths Debunked by Experts #shorts February 27, 2026 Did Your Allergies Get Worse After COVID? Watch This February 26, 2026 There may be a universal vaccine in the future. #science #vaccine #doctor February 21, 2026 The Immune Shift No One Explains After COVID February 19, 2026 Doctor Reacts: Covid masks in 2026?! February 19, 2026 ‘Particularly capricious’: Doctor weighs in on undermining of mRNA technology February 15, 2026