Effectiveness of two-dose vaccination with mRNA COVID-19 vaccines against COVID-19-associated hospitalizations among immunocompromised adults-Nine States, January-September 2021

Affiliations

• ¹ Regenstrief Institute, Indianapolis, Indiana, USA.
• ² Indiana University School of Medicine, Indianapolis, Indiana, USA.
• ³ Westat, Rockville, Maryland.
• ⁴ Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon.
• ⁵ CDC COVID-19 Response Team.
• ⁶ Baylor Scott & White Health, Texas A&M University College of Medicine, Temple, Texas.
• ⁷ Department of Biomedical Informatics, Columbia University, New York, New York.
• ⁸ New York Presbyterian Hospital, New York, New York.
• ⁹ Division of Infectious Diseases and Clinical Epidemiology, Intermountain Healthcare, Salt Lake City, Utah.
• ¹⁰ School of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado.
• ¹¹ Kaiser Permanente Vaccine Study Center, Kaiser Permanente Northern California, Oakland, California.
• ¹² Center for Biomedical Informatics, Regenstrief Institute, Indianapolis, Indiana.
• ¹³ HealthPartners Institute, Minneapolis, Minnesota.
• ¹⁴ Fairbanks School of Public Health, Indiana University, Indianapolis, Indiana.
• ¹⁵ Children's Minnesota, Minneapolis, Minnesota.