![Pfizer, BioNTech say bivalent COVID-19 booster shot performs better against BA.5 omicron subvariant - ABC News Pfizer, BioNTech say bivalent COVID-19 booster shot performs better against BA.5 omicron subvariant - ABC News](https://s.abcnews.com/images/Health/pfizer-biontech-bivalent-booster-file-rt-221_hpMain_20221104-050026_16x9_1600.jpg)
Pfizer, BioNTech say bivalent COVID-19 booster shot performs better against BA.5 omicron subvariant - ABC News
![Omicron boosters: Do I need another COVID-19 shot, and when? | COVID | Prevention | UT Southwestern Medical Center Omicron boosters: Do I need another COVID-19 shot, and when? | COVID | Prevention | UT Southwestern Medical Center](https://s3-us-west-2.amazonaws.com/utsw-patientcare-web-production/original_images/Omicron_booster_copy.jpg)
Omicron boosters: Do I need another COVID-19 shot, and when? | COVID | Prevention | UT Southwestern Medical Center
![Omicron booster: UK becomes first nation to approve vaccine that targets two Covid-19 variants | CNN Omicron booster: UK becomes first nation to approve vaccine that targets two Covid-19 variants | CNN](https://media.cnn.com/api/v1/images/stellar/prod/220815081045-moderna-covid-booster-omicron-variant.jpg?c=original)
Omicron booster: UK becomes first nation to approve vaccine that targets two Covid-19 variants | CNN
![Updated COVID-19 booster targets subvariants responsible for 98% of cases today : Oregon Health News Blog Updated COVID-19 booster targets subvariants responsible for 98% of cases today : Oregon Health News Blog](https://i0.wp.com/covidblog.oregon.gov/wp-content/uploads/2022/09/bivalent.jpg?fit=4431%2C2954&ssl=1)
Updated COVID-19 booster targets subvariants responsible for 98% of cases today : Oregon Health News Blog
![CDC recommends new COVID booster for all Americans over 6 months amid rising cases, hospitalizations - ABC News CDC recommends new COVID booster for all Americans over 6 months amid rising cases, hospitalizations - ABC News](https://i.abcnewsfe.com/a/8751bb25-b566-4440-9e9c-72099e9696bf/covid-2-rt-bb-230906_1694012668027_hpEmbed_3x2.jpg)
CDC recommends new COVID booster for all Americans over 6 months amid rising cases, hospitalizations - ABC News
![Study: Omicron booster gives significant additional protection against COVID-19 – AZ Dept. of Health Services Director's Blog Study: Omicron booster gives significant additional protection against COVID-19 – AZ Dept. of Health Services Director's Blog](https://directorsblog.health.azdhs.gov/wp-content/uploads/2022/11/Omicron-booster-gives-additional-protection-against-COVID-19-300x169.png)
Study: Omicron booster gives significant additional protection against COVID-19 – AZ Dept. of Health Services Director's Blog
![Covid updates: Doctors urge vaccine booster shots as omicron variant continues to spread - 6abc Philadelphia Covid updates: Doctors urge vaccine booster shots as omicron variant continues to spread - 6abc Philadelphia](https://cdn.abcotvs.com/dip/images/11349897_121621-wpvi-covid-booster-latest-4pm-CC-vid.jpg?w=1600)