Immunocompromise and durability of BNT162b2 vaccine against severe outcomes due to omicron and delta variants

Affiliations

• ¹ Kaiser Permanente Southern California Department of Research & Evaluation, Pasadena, CA 91101, USA; Department of Health Systems Science, Kaiser Permanente Bernard J Tyson School of Medicine, Pasadena, CA USA. Electronic address: [email protected].
• ² Kaiser Permanente Southern California Department of Research & Evaluation, Pasadena, CA 91101, USA.
• ³ Pfizer, Collegeville, PA, USA.
• ⁴ Southern California Permanente Medical Group, Harbor City, CA, USA.