Inoculum at the time of SARS-CoV-2 exposure and risk of disease severity

A relationship between the infecting dose and the risk of disease severity has not been demonstrated for SARS-CoV-2 infection. Here, we report three clusters of individuals that were potentially exposed to distinct inoculum in Madrid. Overall each group developed divergent clinical forms of COVID-19...

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Main Authors: María Pilar Guallar, Rosa Meiriño, Carolina Donat-Vargas, Octavio Corral, Nicolás Jouvé, Vicente Soriano
Format: Article
Language:English
Published: Elsevier 2020-08-01
Series:International Journal of Infectious Diseases
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1201971220304707
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author María Pilar Guallar
Rosa Meiriño
Carolina Donat-Vargas
Octavio Corral
Nicolás Jouvé
Vicente Soriano
author_facet María Pilar Guallar
Rosa Meiriño
Carolina Donat-Vargas
Octavio Corral
Nicolás Jouvé
Vicente Soriano
author_sort María Pilar Guallar
collection DOAJ
description A relationship between the infecting dose and the risk of disease severity has not been demonstrated for SARS-CoV-2 infection. Here, we report three clusters of individuals that were potentially exposed to distinct inoculum in Madrid. Overall each group developed divergent clinical forms of COVID-19. Our data support that a greater viral inoculum at the time of SARS-CoV-2 exposure might determine a higher risk of severe COVID-19.
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spelling doaj.art-488fab56fe0d4209b29b2a165ad3dc352022-12-22T01:20:24ZengElsevierInternational Journal of Infectious Diseases1201-97122020-08-0197290292Inoculum at the time of SARS-CoV-2 exposure and risk of disease severityMaría Pilar Guallar0Rosa Meiriño1Carolina Donat-Vargas2Octavio Corral3Nicolás Jouvé4Vicente Soriano5Department of Preventive Medicine, Public Health & Microbiology. Medical School. Universidad Autónoma de Madrid, Madrid, Spain; IdiPAZ & CIBER Epidemiology & Public Health (CIBERESP) & IMDEA-Food Institute, CEI UAM-CSIC, Madrid, SpainOncology Department, Clínica Universitaria de Navarra, Madrid, SpainDepartment of Preventive Medicine, Public Health & Microbiology. Medical School. Universidad Autónoma de Madrid, Madrid, Spain; Nutritional and Cardiovascular Epidemiology Unit, Environmental Medicine Institute (IMM), Karolinska Institute, Stockholm, SwedenGenetics Department, Alcalá University, Madrid, SpainGenetics Department, Alcalá University, Madrid, SpainMedical Center & Health Sciences School, UNIR, Madrid, Spain; Corresponding author at: UNIR Health Sciences School & Medical Center, Calle Almansa 101, Madrid 28040, Spain.A relationship between the infecting dose and the risk of disease severity has not been demonstrated for SARS-CoV-2 infection. Here, we report three clusters of individuals that were potentially exposed to distinct inoculum in Madrid. Overall each group developed divergent clinical forms of COVID-19. Our data support that a greater viral inoculum at the time of SARS-CoV-2 exposure might determine a higher risk of severe COVID-19.http://www.sciencedirect.com/science/article/pii/S1201971220304707coronavirusCOVID-19inoculumoutbreaktransmissionepidemiology
spellingShingle María Pilar Guallar
Rosa Meiriño
Carolina Donat-Vargas
Octavio Corral
Nicolás Jouvé
Vicente Soriano
Inoculum at the time of SARS-CoV-2 exposure and risk of disease severity
International Journal of Infectious Diseases
coronavirus
COVID-19
inoculum
outbreak
transmission
epidemiology
title Inoculum at the time of SARS-CoV-2 exposure and risk of disease severity
title_full Inoculum at the time of SARS-CoV-2 exposure and risk of disease severity
title_fullStr Inoculum at the time of SARS-CoV-2 exposure and risk of disease severity
title_full_unstemmed Inoculum at the time of SARS-CoV-2 exposure and risk of disease severity
title_short Inoculum at the time of SARS-CoV-2 exposure and risk of disease severity
title_sort inoculum at the time of sars cov 2 exposure and risk of disease severity
topic coronavirus
COVID-19
inoculum
outbreak
transmission
epidemiology
url http://www.sciencedirect.com/science/article/pii/S1201971220304707
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