Pediatric SARS-CoV-2 outcomes study (PECOS): 12-month longitudinal analysis of post-COVID symptoms in infected versus uninfected participants.

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Title: Pediatric SARS-CoV-2 outcomes study (PECOS): 12-month longitudinal analysis of post-COVID symptoms in infected versus uninfected participants.
Authors: Montealegre Sanchez GA; Division of Clinical Research, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA., Yonts AB; Division of Pediatric Infectious Diseases, Children's National Hospital, Washington, DC, USA.; Department of Pediatrics, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA.; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA., Mateja A; Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA., Arrigoni LE; Department of Pediatrics, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA.; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA., Wolff MT; Clinical Research Directorate, National Cancer Institute Frederick National Laboratory for Cancer Research, Frederick, MD, USA., Barrix MC; Center for Cancer and Immunology Research, Children's National Research Institute, Washington, DC, USA., Weyers S; Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA., Edu MA; Center for Cancer and Immunology Research, Children's National Research Institute, Washington, DC, USA., Falik RL; Division of Pediatric Infectious Diseases, Children's National Hospital, Washington, DC, USA., Geslak ML; Center for Cancer and Immunology Research, Children's National Research Institute, Washington, DC, USA., Gierdalski M; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA.; Division of Biostatistics and Study Methodology, Children's National Research Institute, Washington, DC, USA., Huq SR; Center for Cancer and Immunology Research, Children's National Research Institute, Washington, DC, USA., Notarangelo LD; Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, MD, USA., Bost JE; Department of Pediatrics, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA.; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA.; Division of Biostatistics and Study Methodology, Children's National Research Institute, Washington, DC, USA., Liang CJ; Biostatistics Research Branch, NIAID, NIH, Bethesda, MD, USA., Barron K; Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, MD, USA.; Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA., DeBiasi RL; Division of Pediatric Infectious Diseases, Children's National Hospital, Washington, DC, USA. rdebiasi@childrensnational.org.; Department of Pediatrics, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA. rdebiasi@childrensnational.org.; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA. rdebiasi@childrensnational.org.; Department of Microbiology, Immunology and Tropical Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA. rdebiasi@childrensnational.org.
Corporate Authors: PECOS Study Team
Source: Pediatric research [Pediatr Res] 2026 May 02. Date of Electronic Publication: 2026 May 02.
Publication Type: Journal Article
Journal Info: Publisher: Nature Publishing Group Country of Publication: United States NLM ID: 0100714 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1530-0447 (Electronic) Linking ISSN: 00313998 NLM ISO Abbreviation: Pediatr Res Subsets: MEDLINE
Database: MEDLINE Ultimate
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  Data: <searchLink fieldCode="AU" term="%22Montealegre+Sanchez+GA%22">Montealegre Sanchez GA</searchLink>; Division of Clinical Research, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA.<br /><searchLink fieldCode="AU" term="%22Yonts+AB%22">Yonts AB</searchLink>; Division of Pediatric Infectious Diseases, Children's National Hospital, Washington, DC, USA.; Department of Pediatrics, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA.; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Mateja+A%22">Mateja A</searchLink>; Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.<br /><searchLink fieldCode="AU" term="%22Arrigoni+LE%22">Arrigoni LE</searchLink>; Department of Pediatrics, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA.; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Wolff+MT%22">Wolff MT</searchLink>; Clinical Research Directorate, National Cancer Institute Frederick National Laboratory for Cancer Research, Frederick, MD, USA.<br /><searchLink fieldCode="AU" term="%22Barrix+MC%22">Barrix MC</searchLink>; Center for Cancer and Immunology Research, Children's National Research Institute, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Weyers+S%22">Weyers S</searchLink>; Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, Frederick, MD, USA.<br /><searchLink fieldCode="AU" term="%22Edu+MA%22">Edu MA</searchLink>; Center for Cancer and Immunology Research, Children's National Research Institute, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Falik+RL%22">Falik RL</searchLink>; Division of Pediatric Infectious Diseases, Children's National Hospital, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Geslak+ML%22">Geslak ML</searchLink>; Center for Cancer and Immunology Research, Children's National Research Institute, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Gierdalski+M%22">Gierdalski M</searchLink>; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA.; Division of Biostatistics and Study Methodology, Children's National Research Institute, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Huq+SR%22">Huq SR</searchLink>; Center for Cancer and Immunology Research, Children's National Research Institute, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Notarangelo+LD%22">Notarangelo LD</searchLink>; Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, MD, USA.<br /><searchLink fieldCode="AU" term="%22Bost+JE%22">Bost JE</searchLink>; Department of Pediatrics, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA.; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA.; Division of Biostatistics and Study Methodology, Children's National Research Institute, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Liang+CJ%22">Liang CJ</searchLink>; Biostatistics Research Branch, NIAID, NIH, Bethesda, MD, USA.<br /><searchLink fieldCode="AU" term="%22Barron+K%22">Barron K</searchLink>; Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, MD, USA.; Division of Intramural Research, NIAID, NIH, Bethesda, MD, USA.<br /><searchLink fieldCode="AU" term="%22DeBiasi+RL%22">DeBiasi RL</searchLink>; Division of Pediatric Infectious Diseases, Children's National Hospital, Washington, DC, USA. rdebiasi@childrensnational.org.; Department of Pediatrics, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA. rdebiasi@childrensnational.org.; Center for Health Outcomes and Research Delivery Science, Children's National Research Institute, Washington, DC, USA. rdebiasi@childrensnational.org.; Department of Microbiology, Immunology and Tropical Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC, USA. rdebiasi@childrensnational.org.
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