Abstract
BACKGROUND
The spatial and temporal dynamics of SARS-CoV-2 have been described in case series and retrospective studies. In this study, we provide a coherent overview of the duration of viral detection and viral RNA load in COVID-19 patients, stratified by specimen type, clinical severity, and age.
METHOD
We systematically searched PubMed/MEDLINE and Cochrane review database for studies published between 1.11.2019 and 23.04.2020. We pooled the data of selected studies (22/7226 (650 patients) for meta-analysis) to estimate duration of viral detection and visualized viral load over time.
FINDINGS
Our analysis showed consistent viral detection from specimen from the upper respiratory tract (URT), the lower respiratory tract (LRT), and faeces, irrespective of the clinical severity of COVID-19. Our analysis suggests that SARS-CoV-2 persists for a longer duration in the LRT compared to the URT in adult patients (5•7 days in mild; 5•9 days in moderate-severe patients). The differences in the duration of viral detection between mild and moderate-severe patients is limited in the LRT, but an indication of longer duration of viral detection for moderate-severe patients was observed in feces (15 days in mild vs. 21 days in moderate-severe patients) and the URT (12 days in mild vs. 16 days in moderate-severe patients). Further, viral load was demonstrated to peak in earlier stages of infection in the URT compared to LRT.
INTERPRETATION
This review may aid mathematical modelling and help in defining appropriate endpoints for clinical trails with antivirals in COVID-19.
FUNDING
The project has received funding support from Innovation Fund Denmark.
TY - JOUR
T1 - Spatial and temporal dynamics of SARS-CoV-2 in COVID-19 patients: A systematic review and meta-analysis.
AU - Weiss,Anne,
AU - Jellingsø,Mads,
AU - Sommer,Morten Otto Alexander,
Y1 - 2020/07/22/
PY - 2020/05/28/received
PY - 2020/07/02/revised
PY - 2020/07/10/accepted
PY - 2020/7/28/pubmed
PY - 2020/9/4/medline
PY - 2020/7/26/entrez
KW - COVID-19
KW - SARS-CoV-2
KW - Systematic review
KW - Viral dynamics
SP - 102916
EP - 102916
JF - EBioMedicine
JO - EBioMedicine
VL - 58
N2 - BACKGROUND: The spatial and temporal dynamics of SARS-CoV-2 have been described in case series and retrospective studies. In this study, we provide a coherent overview of the duration of viral detection and viral RNA load in COVID-19 patients, stratified by specimen type, clinical severity, and age. METHOD: We systematically searched PubMed/MEDLINE and Cochrane review database for studies published between 1.11.2019 and 23.04.2020. We pooled the data of selected studies (22/7226 (650 patients) for meta-analysis) to estimate duration of viral detection and visualized viral load over time. FINDINGS: Our analysis showed consistent viral detection from specimen from the upper respiratory tract (URT), the lower respiratory tract (LRT), and faeces, irrespective of the clinical severity of COVID-19. Our analysis suggests that SARS-CoV-2 persists for a longer duration in the LRT compared to the URT in adult patients (5•7 days in mild; 5•9 days in moderate-severe patients). The differences in the duration of viral detection between mild and moderate-severe patients is limited in the LRT, but an indication of longer duration of viral detection for moderate-severe patients was observed in feces (15 days in mild vs. 21 days in moderate-severe patients) and the URT (12 days in mild vs. 16 days in moderate-severe patients). Further, viral load was demonstrated to peak in earlier stages of infection in the URT compared to LRT. INTERPRETATION: This review may aid mathematical modelling and help in defining appropriate endpoints for clinical trails with antivirals in COVID-19. FUNDING: The project has received funding support from Innovation Fund Denmark.
SN - 2352-3964
UR - https://www.unboundmedicine.com/medline/citation/32711256/Spatial_and_temporal_dynamics_of_SARS_CoV_2_in_COVID_19_patients:_A_systematic_review_and_meta_analysis_
L2 - https://linkinghub.elsevier.com/retrieve/pii/S2352-3964(20)30291-7
DB - PRIME
DP - Unbound Medicine
ER -