A Study to Learn About the Study Medicine Ibuzatrelvir in Adults With COVID-19 Who Are Severely Immunocompromised

Hope Clinical Research, Inc., Canoga Park, California, United States

Amicis Research Center - Granada Hills, Granada Hills, California, United States

Jacobs Medical Center at UC San Diego Health, La Jolla, California, United States

UC Davis CTSC Clinical Research Center, Sacramento, California, United States

University of California Davis Health, Sacramento, California, United States

UC San Diego Medical Center - Hillcrest, San Diego, California, United States

University of California San Diego Health, San Diego, California, United States

UCHealth Anschutz Inpatient Pavilion - Anschutz Medical Campus, Aurora, Colorado, United States

University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States

University of Colorado Clinical and Translational Research Center, Aurora, Colorado, United States

University of Colorado Hospital, Aurora, Colorado, United States

Georgetown University Medical Center, Washington D.C., District of Columbia, United States

BRP- Hialeah Hospital, Hialeah, Florida, United States

D&H Cancer Research Center LLC, Margate, Florida, United States

Kendall South Medical Center, Miami, Florida, United States

Velocity Clinical Research, Savannah, Savannah, Georgia, United States

Humphreys Diabetes Center, Boise, Idaho, United States

St. Luke's Idaho Elks Children's Pavilion, Boise, Idaho, United States

Northwestern Memorial Hospital, Chicago, Illinois, United States

Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States

Johns Hopkins Hospital, Baltimore, Maryland, United States

Jadestone Clinical Research, Silver Spring, Maryland, United States

Brigham and Women's Hospital, Boston, Massachusetts, United States

Clinical Trials Center, Boston, Massachusetts, United States

Clinical Trials Hub, Boston, Massachusetts, United States

Skylight Health Research, - Burlington, Burlington, Massachusetts, United States

University of Massachusetts Chan Medical School, Worcester, Massachusetts, United States

University of Michigan, Ann Arbor, Michigan, United States

Henry Ford Hospital, Detroit, Michigan, United States

Profound Research LLC, Farmington Hills, Michigan, United States

Holy Name Medical Center, Teaneck, New Jersey, United States

Duke Vaccine and Trials Unit, Durham, North Carolina, United States

Duke Vaccine and Trials Unit, Durham, North Carolina, United States

Duke University - Main Hospital and Clinics, Durham, North Carolina, United States

University of Cincinnati Medical Center, Cincinnati, Ohio, United States

University of Cincinnati College of Medicine (UC Holmes), Cincinnati, Ohio, United States

TRC, Pittsburgh, Pennsylvania, United States

University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States

UPMC Division of Infectious Disease Clinic, Pittsburgh, Pennsylvania, United States

UPMC Presbyterian IDS, Pittsburgh, Pennsylvania, United States

UPMC Presbyterian Shadyside, Pittsburgh, Pennsylvania, United States

UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, United States

UPMC Shadyside IDS, Pittsburgh, Pennsylvania, United States

UPMC Shadyside, Pittsburgh, Pennsylvania, United States

Medical University of South Carolina Infectious Disease Clinic, Charleston, South Carolina, United States

Medical University of South Carolina Investigational Drug Services (IDS), Charleston, South Carolina, United States

Medical University of South Carolina Investigational Drug Services Pharmacy, Charleston, South Carolina, United States

Medical University of South Carolina Research Nexus Clinic, Charleston, South Carolina, United States

Medical University of South Carolina Translational Research Nexus Clinic and Laboratory, Charleston, South Carolina, United States

Medical University of South Carolina, Charleston, South Carolina, United States

West Tennessee Research Institute, Jackson, Tennessee, United States

Zenos Clinical Research, Dallas, Texas, United States

Baylor Scott & White Health - Center for Advanced Heart and Lung Disease, Dallas, Texas, United States

Baylor Scott & White Research Institute - Clinical Trials Office, Dallas, Texas, United States

Baylor University Medical Center, Dallas, Texas, United States

Houston Methodist Hospital, Houston, Texas, United States

Memorial Hermann Hospital, Houston, Texas, United States

The University of Texas Health Science Center at Houston, Houston, Texas, United States

UT Physicians, Houston, Texas, United States

Seattle Rheumatology Associates, Seattle, Washington, United States

Swedish Ambulatory Infusion Center- First Hill, Seattle, Washington, United States

Swedish Cancer Institute Treatment Center, Seattle, Washington, United States

Swedish Medical Center- Innovative Therapeutics & Research Unit, Seattle, Washington, United States

Swedish Organ Transplant and Liver Center, Seattle, Washington, United States

Swedish Medical Center - First Hill Campus, Seattle, Washington, United States

Hospital Italiano de La Plata, La Plata, Buenos Aires, Argentina

Hospital Italiano de Buenos Aires, ABB, Buenos Aires F.D., Argentina

Instituto Médico Río Cuarto, Río Cuarto, Córdoba Province, Argentina

Sanatorio Sagrado Corazón, Buenos Aires, Argentina

UZ Brussel, Brussels, Brussels Capital, Belgium

Université Libre de Bruxelles - Hôpital Erasme, Brussels, Bruxelles-capitale, Région de, Belgium

AZ Sint-Jan Brugge-Oostende AV, Bruges, West-vlaanderen, Belgium

Jules Bordet Institute, Anderlecht, Belgium

School of Medicine Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil

Hospital Nossa Senhora das Graças, Curitiba, Paraná, Brazil

Centro Médico São Francisco, Curitiba, Paraná, Brazil

Hospital de Clinicas de Porto Alegre, Bairro Santa Cecília, Rio Grande do Sul, Brazil

Hospital e Maternidade Celso Pierro, Campinas, São Paulo, Brazil

CECIP - Centro de Estudos do Interior Paulista, Jaú, São Paulo, Brazil

Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil

Icesp - Instituto Do Câncer Do Estado de São Paulo, São Paulo, Brazil

Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein, São Paulo, Brazil

Rigshospitalet, Copenhagen, Capital Region, Denmark

Aarhus Universitetshospital, Skejby, Aarhus, Central Jutland, Denmark

Odense Universitetshospital, Odense, Region Syddanmark, Denmark

Aalborg Universitetshospital, Syd, Gistrup, Denmark

Hopital Claude Huriez - CHU de Lille, Lille, NORD, France

Centre Hospitalier Universitaire Dijon Bourgogne - Hôpital François Mitterrand, Dijon, France

Hôpital Saint Antoine, Paris, France

Hôpital Bichat - Claude-Bernard, Paris, France

Hôpital Saint-Louis, Paris, Île-de-France Region, France

TUM Klinikum, München, Bavaria, Germany

Universitaetsklinikum Koeln, Cologne, North Rhine-Westphalia, Germany

UKE Hamburg, Hamburg, Germany

University General Hospital of Alexandroupoli, Alexandroupoli, Anatolikí Makedonía KAI Thráki, Greece

Evangelismos General Hospital of Athens, Athens, Attikí, Greece

Alexandra General Hospital of Athens, Athens, Attikí, Greece

General Hospital of Athens "Laiko", Athens, Attikí, Greece

Ippokrateio General Hospital of Thessaloniki, Thessaloniki, Greece

Fujita Health University Hospital, Toyoake, Aichi-ken, Japan

International University of Health and Welfare Narita Hospital, Narita, Chiba, Japan

Aso Iizuka Hospital, Iizuka, Fukuoka, Japan

Rinku General Medical Center, Izumisano, Osaka, Japan

Tokyo Medical University Hachioji Medical Center, Hachiōji, Tokyo, Japan

National Center for Global Health and Medicine, Shinjuku, Tokyo, Japan

Tachikawa Hospital, Tachikawa, Tokyo, Japan

National Hospital Organization Kyushu Medical Center, Fukuoka, Japan

Nagasaki University Hospital, Nagasaki, Japan

Saga University Hospital, Saga, Japan

Fundación Santos y de la Garza Evia I.B.P, San Pedro Garza García, Nuevo León, Mexico

FAICIC S. de R.L. de C.V., Veracruz, Veracruz Ignacio de LA Llave, Mexico

Radboudumc, Nijmegen, Netherlands

Erasmus MC, Rotterdam, Netherlands

BRCR Medical Center - Ponce, Ponce, Puerto Rico

Canas Medical Center, Ponce, Puerto Rico

BRCR Global Puerto Rico, San Juan, Puerto Rico

Fakultna nemocnica s poliklinikou F.D.Roosevelta Banska Bystrica, Banská Bystrica, Banská Bystrica Region, Slovakia

Narodny ustav detskych chorob, Bratislava, Bratislava Region, Slovakia

Fakultna nemocnica Trnava, Trnava, Trnava Region, Slovakia

Narodny onkologicky ustav, Bratislava, Slovakia

Nemocnica s poliklinikou Stefana Kukuru Michalovce, a.s., Michalovce, Slovakia

Gachon University Gil Medical Center, Namdong-gu, Incheon-gwangyeoksi [incheon], South Korea

Chonnam National University Hospital, Gwangju, Kwangju-kwangyǒkshi, South Korea

The Catholic University of Korea, Eunpyeong St. Mary's Hospital, Seoul, Seoul-teukbyeolsi [seoul], South Korea

Asan Medical Center, Seoul, Seoul-teukbyeolsi [seoul], South Korea

CHUAC-Complejo Hospitalario Universitario A Coruña, A Coruña, A Coruña [LA Coruña], Spain

Hospital Universitario Reina Sofia, Córdoba, Andalusia, Spain

Hospital Germans Trias i Pujol, Badalona, Barcelona [barcelona], Spain

Parc de Salut Mar - Hospital del Mar, Barcelona, Barcelona [barcelona], Spain

Hospital Universitari Vall d'Hebron, Barcelona, Barcelona [barcelona], Spain

Hospital de la Santa Creu i Sant Pau, Barcelona, Catalunya [cataluña], Spain

Hospital Universitario La Paz, Madrid, Madrid, Comunidad de, Spain

CHUVI- Hospital Alvaro Cunqueiro, Vigo, Pontevedra [pontevedra], Spain

Hospital General Universitario Dr. Balmis, Alicante, Spain

Hospital Universitario Virgen de Valme, Seville, Spain

Skånes Universitetssjukhus Malmö, Malmö, Skåne LÄN [se-12], Sweden

Karolinska Universitetssjukhuset Huddinge, Huddinge, Sweden

Far Eastern Memorial Hospital, New Taipei City, NEW Taipei, Taiwan

Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung City, Taiwan

Taichung Veterans General Hospital, Taichung, Taiwan

Taipei Veterans General Hospital, Taipei, Taiwan

Acibadem Universitesi Atakent Hastanesi, Istanbul, İ̇stanbul, Turkey (Türkiye)

Hacettepe Universite Hastaneleri, Ankara, Turkey (Türkiye)

Ibni Sina Hospital, Ankara, Turkey (Türkiye)

Gaziantep Universitesi Sahinbey Arastirma ve Uygulama Hastanesi, Gaziantep, Turkey (Türkiye)

Kocaeli Üniversitesi, Kocaeli, Turkey (Türkiye)

Sakarya Training and Research Hospital, Sakarya, Turkey (Türkiye)

Karadeniz Technical University, Trabzon, Turkey (Türkiye)