![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
![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
![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)
Covid updates: Doctors urge vaccine booster shots as omicron variant continues to spread - 6abc Philadelphia
![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)