Review: Viral and host factors related to the clinical outcome of COVID-19

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Review: Viral and host factors related to the clinical outcome of COVID-19

This study systematically analyzed key immunological parameters spanning the course of infection, obtained viral genomes directly from clinical samples, and delineated factors associated with prognosis and epidemiological features.

  • Authors analyzed the clinical, molecular and immunological data from 326 confirmed cases of COVID-19 in Shanghai.
  • Genomic sequences of SARS-CoV-2 assembled from 112 quality samples together with sequences in the Global Initiative on Sharing All Influenza Data (GISAID) showed a stable evolution and suggested two major lineages with differential exposure history during the early phase of the outbreak in Wuhan. Nevertheless, they exhibited similar virulence and clinical outcomes.
  • Lymphocytopenia, especially reduced CD4+ and CD8+ T cell counts upon admission, was predictive of disease progression. High levels of IL-6 and IL-8 during treatment were observed in patients with severe or critical disease and correlated with decreased lymphocyte count.
  • The determinants of disease severity seemed to stem mostly from host factors such as age, lymphocytopenia, and its associated cytokine storm, whereas viral genetic variation did not significantly affect the outcomes.
|2020-05-22T11:00:47-04:00May 21st, 2020|COVID-19 Literature|Comments Off on Review: Viral and host factors related to the clinical outcome of COVID-19

About the Author: Megan McHenry

Megan McHenry
Megan S. McHenry, MD, MS, FAAP is a pediatrician and an Assistant Professor of Pediatrics in the Ryan White Center for Pediatric Infectious Disease and Global Health at Indiana University School of Medicine. Dr. McHenry's research focuses on early childhood development in children living in resource-limited settings. This work is frequently aligned with community-engaged research and dissemination and implementation science frameworks. She primarily conducts research in collaboration with the Academic Model for Providing Access to Healthcare (AMPATH) Research Network in Kenya. Dr. McHenry currently has a career development award through the National Institutes of Health to develop a neurodevelopmental screening program for children born to HIV-infected mothers in Kenya. Dr. McHenry is also the Director of Pediatric Global Health Education and a co-Director of the Morris Green Physician-Scientist Development Program at Indiana University School of Medicine. In additional to global health lectures, she also educates residents and students on early childhood development, basic biostatistical techniques, research methodologies, and research ethics. She mentors multiple pediatric fellows, residents, and medical students interested in early childhood development within global contexts.

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