Accepted for Publication: March 4, 2021.
Published: April 22, 2021. doi:10.1001/jamanetworkopen.2021.7498
Open Access: This is an open access article distributed under the terms of the CC-BY License. © 2021 Tu TM et al. JAMA Network Open.
Corresponding Author: Tian Ming Tu, MRCP, Department of Neurology, National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore 308433 (tu.tian.ming@singhealth.com.sg).
Author Contributions: Dr Tu had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Concept and design: Tu, Seet, Umapathi.
Acquisition, analysis, or interpretation of data: Tu, Seet, Tham, Koh, Chiew, De Leon, Chua, Hui, S. S. Y. Tan, Vasoo, B. Y.-Q. Tan, Tambyah, Yeo.
Drafting of the manuscript: Tu, Seet, Koh, De Leon, Chua, B. Y.-Q. Tan, Tambyah.
Critical revision of the manuscript for important intellectual content: Tu, Tham, Chiew, Hui, S. S. Y. Tan, Vasoo, B. Y.-Q. Tan, Umapathi, Tambyah, Yeo.
Statistical analysis: Tu, De Leon, B. Y.-Q. Tan.
Administrative, technical, or material support: Tham, Koh, Chiew, Hui, S. S. Y. Tan, B. Y.-Q. Tan, Umapathi, Tambyah, Yeo.
Supervision: Umapathi, Yeo.
Conflict of Interest Disclosures: Dr Tambyah reported receiving grants paid to the institution from Roche, Shionogi, Arcturus, and Johnson and Johnson as well as honorarium paid to the institution from AJ Biologics. Dr Yeo reported receiving personal fees from Stryker and grants from the National Medical Research Council of Singapore outside the submitted work. No other disclosures were reported.
1.Ji
T , Chen
HL , Xu
J ,
et al. Lockdown contained the spread of 2019 novel coronavirus disease in Huangshi City, China: early epidemiological findings.
Clin Infect Dis. 2020;71(6):1454-1460. doi:
10.1093/cid/ciaa390
PubMedGoogle ScholarCrossref 6.Rivett
L , Sridhar
S , Sparkes
D ,
et al; CITIID-NIHR COVID-19 BioResource Collaboration. Screening of healthcare workers for SARS-CoV-2 highlights the role of asymptomatic carriage in COVID-19 transmission.
Elife. 2020;9:e58728. doi:
10.7554/eLife.58728PubMedGoogle Scholar 10.Bikdeli
B , Madhavan
MV , Jimenez
D ,
et al; Global COVID-19 Thrombosis Collaborative Group, Endorsed by the ISTH, NATF, ESVM, and the IUA, Supported by the ESC Working Group on Pulmonary Circulation and Right Ventricular Function. COVID-19 and thrombotic or thromboembolic disease: implications for prevention, antithrombotic therapy, and follow-up:
JACC state-of-the-art review.
J Am Coll Cardiol. 2020;75(23):2950-2973. doi:
10.1016/j.jacc.2020.04.031
PubMedGoogle ScholarCrossref 17.von Elm
E , Altman
DG , Egger
M , Pocock
SJ , Gøtzsche
PC , Vandenbroucke
JP ; STROBE Initiative. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies.
Lancet. 2007;370(9596):1453-1457. doi:
10.1016/S0140-6736(07)61602-X
PubMedGoogle ScholarCrossref 19.Rothman
KJ . Modern Epidemiology. Little Brown & Co; 1986.
20.Adams
HP
Jr , Bendixen
BH , Kappelle
LJ ,
et al; TOAST Investigators. Classification of subtype of acute ischemic stroke: definitions for use in a multicenter clinical trial.
Stroke. 1993;24(1):35-41. doi:
10.1161/01.STR.24.1.35
PubMedGoogle ScholarCrossref 26.Tsang
ACO , You
J , Li
LF ,
et al. Burden of large vessel occlusion stroke and the service gap of thrombectomy: a population-based study using a territory-wide public hospital system registry.
Int J Stroke. 2020;15(1):69-74. doi:
10.1177/1747493019830585
PubMedGoogle ScholarCrossref 35.Yamaoka
Y , Jeremiah
SS , Miyakawa
K ,
et al. Whole nucleocapsid protein of SARS-CoV-2 may cause false positive results in serological assays.
Clin Infect Dis. 2020;ciaa637. doi:
10.1093/cid/ciaa637
PubMedGoogle Scholar