JMIR Theme Issue 2020/21: COVID-19 Special Issue

Changes in Workers’ Sedentary and Physical Activity Behaviors in Response to the COVID-19 Pandemic and Their Relationships With Fatigue: Longitudinal Online Study

Mohammad Javad Koohsari, Tomoki Nakaya, Gavin R McCormack, Ai Shibata, Kaori Ishii, Koichiro Oka

JMIR Public Health Surveill 2021 (Mar 26); 7(3):e26293

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Analyzing the Essential Attributes of Nationally Issued COVID-19 Contact Tracing Apps: Open-Source Intelligence Approach and Content Analysis

Jan-Patrick Weiß, Moritz Esdar, Ursula Hübner

JMIR Mhealth Uhealth 2021 (Mar 26); 9(3):e27232

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Understanding On-Campus Interactions With a Semiautomated, Barcode-Based Platform to Augment COVID-19 Contact Tracing: App Development and Usage

Thomas Foster Scherr, Austin N Hardcastle, Carson Paige Moore, Jenna Maria DeSousa, David Wilson Wright

JMIR Mhealth Uhealth 2021 (Mar 26); 9(3):e24275

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App Use and Usability of a Barcode-Based Digital Platform to Augment COVID-19 Contact Tracing: Postpilot Survey and Paradata Analysis

Thomas Foster Scherr, Jenna Maria DeSousa, Carson Paige Moore, Austin Hardcastle, David Wilson Wright

JMIR Public Health Surveill 2021 (Mar 26); 7(3):e25859

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The Dutch COVID-19 Contact Tracing App (the CoronaMelder): Usability Study

Britt Elise Bente, Jan Willem Jaap Roderick van 't Klooster, Maud Annemarie Schreijer, Lea Berkemeier, Joris Elmar van Gend, Peter Jan Hendrik Slijkhuis, Saskia Marion Kelders, Julia Elisabeth Wilhelmina Cornelia van Gemert-Pijnen

JMIR Form Res 2021 (Mar 26); 5(3):e27882

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Impact of a Serious Game (Escape COVID-19) on the Intention to Change COVID-19 Control Practices Among Employees of Long-term Care Facilities: Web-Based Randomized Controlled Trial

Mélanie Suppan, Mohamed Abbas, Gaud Catho, Loric Stuby, Simon Regard, Sophia Achab, Stephan Harbarth, Laurent Suppan

J Med Internet Res 2021 (Mar 25); 23(3):e27443

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Echo Chamber Effect in Rumor Rebuttal Discussions About COVID-19 in China: Social Media Content and Network Analysis Study

Dandan Wang, Yuxing Qian

J Med Internet Res 2021 (Mar 25); 23(3):e27009

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Modeling Predictive Age-Dependent and Age-Independent Symptoms and Comorbidities of Patients Seeking Treatment for COVID-19: Model Development and Validation Study

Yingxiang Huang, Dina Radenkovic, Kevin Perez, Kari Nadeau, Eric Verdin, David Furman

J Med Internet Res 2021 (Mar 25); 23(3):e25696

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Automated Travel History Extraction From Clinical Notes for Informing the Detection of Emergent Infectious Disease Events: Algorithm Development and Validation

Kelly S Peterson, Julia Lewis, Olga V Patterson, Alec B Chapman, Daniel W Denhalter, Patricia A Lye, Vanessa W Stevens, Shantini D Gamage, Gary A Roselle, Katherine S Wallace, Makoto Jones

JMIR Public Health Surveill 2021 (Mar 24); 7(3):e26719

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Short-Range Forecasting of COVID-19 During Early Onset at County, Health District, and State Geographic Levels Using Seven Methods: Comparative Forecasting Study

Christopher J Lynch, Ross Gore

J Med Internet Res 2021 (Mar 23); 23(3):e24925

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Insights From the SmokeFree.gov Initiative Regarding the Use of Smoking Cessation Digital Platforms During the COVID-19 Pandemic: Cross-sectional Trends Analysis Study

Sherine El-Toukhy

J Med Internet Res 2021 (Mar 22); 23(3):e24593

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Revealing Opinions for COVID-19 Questions Using a Context Retriever, Opinion Aggregator, and Question-Answering Model: Model Development Study

Zhao-Hua Lu, Jade Xiaoqing Wang, Xintong Li

J Med Internet Res 2021 (Mar 19); 23(3):e22860

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Temporal Dynamics of Public Emotions During the COVID-19 Pandemic at the Epicenter of the Outbreak: Sentiment Analysis of Weibo Posts From Wuhan

Shaobin Yu, David Eisenman, Ziqiang Han

J Med Internet Res 2021 (Mar 18); 23(3):e27078

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A Framework for a Statistical Characterization of Epidemic Cycles: COVID-19 Case Study

Eduardo Atem De Carvalho, Rogerio Atem De Carvalho

JMIRx Med 2021 (Mar 18); 2(1):e22617

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The Influence of Social Distancing on COVID-19 Mortality in US Counties: Cross-sectional Study

Phoebe Tran, Lam Tran, Liem Tran

JMIR Public Health Surveill 2021 (Mar 18); 7(3):e21606

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Improving Predictions of COVID-19 Preventive Behavior: Development of a Sequential Mediation Model

James A Roberts, Meredith E David

J Med Internet Res 2021 (Mar 17); 23(3):e23218

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Social Media and Emotional Burnout Regulation During the COVID-19 Pandemic: Multilevel Approach

Ruosi Shao, Zhen Shi, Di Zhang

J Med Internet Res 2021 (Mar 16); 23(3):e27015

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Emotional Attitudes of Chinese Citizens on Social Distancing During the COVID-19 Outbreak: Analysis of Social Media Data

Lining Shen, Rui Yao, Wenli Zhang, Richard Evans, Guang Cao, Zhiguo Zhang

JMIR Med Inform 2021 (Mar 16); 9(3):e27079

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Public Interest in Cosmetic Surgical and Minimally Invasive Plastic Procedures During the COVID-19 Pandemic: Infodemiology Study of Twitter Data

Wenhui Liu, Zhiru Wei, Xu Cheng, Ran Pang, Han Zhang, Guangshuai Li

J Med Internet Res 2021 (Mar 16); 23(3):e23970

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COVID-19 Discourse on Twitter in Four Asian Countries: Case Study of Risk Communication

Sungkyu Park, Sungwon Han, Jeongwook Kim, Mir Majid Molaie, Hoang Dieu Vu, Karandeep Singh, Jiyoung Han, Wonjae Lee, Meeyoung Cha

J Med Internet Res 2021 (Mar 16); 23(3):e23272

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