Systematic scoping review of the implementation, adoption, use, and effectiveness of digital contact tracing interventions for COVID-19 in the Western Pacific Region

Bannister-Tyrrell, Melanie; Chen, Mengji; Choi, Vladimir; Miglietta, Alessandro; Galea, Gauden

doi:10.1016/j.lanwpc.2022.100647

Cited by 5 publications

(7 citation statements)

References 37 publications

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“…With this detailed knowledge, the two factors, contact rate and transmission probability, embedded in the effective reproductive number can be minimized to forestall the outbreak of an EID such as COVID-19 in a community. Since the beginning of the COVID-19 pandemic, digital contact tracing has been proposed and implemented in a variety of nations and regions [5,8,10,11,[13][14][15][16][17][18][19][20][21][22][23]. The implementation of contact tracing in the context of containment measures may vary from time to time, not only due to the transmissibility and severity of dominant COVID-19 variants of concern (VOCs) but also the availability of vaccines and antiviral therapies [24,25].…”

Section: The Needs Of Digital Contact Tracingmentioning

confidence: 99%

Community-Based Digital Contact Tracing of Emerging Infectious Diseases: Design and Implementation Study With Empirical COVID-19 Cases

Wang,

Lin,

Yao

et al. 2023

J Med Internet Res

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Background Contact tracing for containing emerging infectious diseases such as COVID-19 is resource intensive and requires digital transformation to enable timely decision-making. Objective This study demonstrates the design and implementation of digital contact tracing using multimodal health informatics to efficiently collect personal information and contain community outbreaks. The implementation of digital contact tracing was further illustrated by 3 empirical SARS-CoV-2 infection clusters. Methods The implementation in Changhua, Taiwan, served as a demonstration of the multisectoral informatics and connectivity between electronic health systems needed for digital contact tracing. The framework incorporates traditional travel, occupation, contact, and cluster approaches and a dynamic contact process enabled by digital technology. A centralized registry system, accessible only to authorized health personnel, ensures privacy and data security. The efficiency of the digital contact tracing system was evaluated through a field study in Changhua. Results The digital contact tracing system integrates the immigration registry, communicable disease report system, and national health records to provide real-time information about travel, occupation, contact, and clusters for potential contacts and to facilitate a timely assessment of the risk of COVID-19 transmission. The digitalized system allows for informed decision-making regarding quarantine, isolation, and treatment, with a focus on personal privacy. In the first cluster infection, the system monitored 665 contacts and isolated 4 (0.6%) cases; none of the contacts (0/665, 0%) were infected during quarantine. The estimated reproduction number of 0.92 suggests an effective containment strategy for preventing community-acquired outbreak. The system was also used in a cluster investigation involving foreign workers, where none of the 462 contacts (0/462, 0%) tested positive for SARS-CoV-2. Conclusions By integrating the multisectoral database, the contact tracing process can be digitalized to provide the information required for risk assessment and decision-making in a timely manner to contain a community-acquired outbreak when facing the outbreak of emerging infectious disease.

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Section: The Needs Of Digital Contact Tracingmentioning

confidence: 99%

Community-Based Digital Contact Tracing of Emerging Infectious Diseases: Design and Implementation Study With Empirical COVID-19 Cases

Wang,

Lin,

Yao

et al. 2023

J Med Internet Res

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“…Digital contact tracing (DCT) technologies were implemented across the globe to assist with contact tracing [2]. These technologies have ranged from Bluetooth proximity apps, quick response (QR) code apps, and global positioning system (GPS) technology [3]. Previous research has primarily focused on the public uptake of these technologies [3], including New Zealand (NZ) [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…These technologies have ranged from Bluetooth proximity apps, quick response (QR) code apps, and global positioning system (GPS) technology [3]. Previous research has primarily focused on the public uptake of these technologies [3], including New Zealand (NZ) [4][5][6]. To our knowledge, assessments of effectiveness have focused on the Bluetooth Exposure Notification Framework (ENF) [7][8][9][10][11][12][13][14][15][16][17], while there appear to be limited assessments of the effectiveness of the location-based QR code systems [18], with no assessments in the Western Pacific Region [3].…”

Section: Introductionmentioning

confidence: 99%

“…Previous research has primarily focused on the public uptake of these technologies [ 3 ], including New Zealand (NZ) [ 4 – 6 ]. To our knowledge, assessments of effectiveness have focused on the Bluetooth Exposure Notification Framework (ENF) [ 7 – 17 ], while there appear to be limited assessments of the effectiveness of the location-based QR code systems [ 18 ], with no assessments in the Western Pacific Region [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…The majority of DCT evaluation studies have focused on the potential barriers and facilitators to the public adoption of these tools [ 3 ]. The research focus on public uptake is justified as modelling, and empirical studies have demonstrated that the effectiveness of these tools is highly dependent on coverage [ 9 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

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Population and contact tracer uptake of New Zealand’s QR-code-based digital contact tracing app for COVID-19

Chambers,

Anglemyer,

Chen

et al. 2024

Epidemiol. Infect.

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This study aimed to understand the population and contact tracer uptake of the quick response (QR)-code-based function of the New Zealand COVID Tracer App (NZCTA) used for digital contact tracing (DCT). We used a retrospective cohort of all COVID-19 cases between August 2020 and February 2022. Cases of Asian and other ethnicities were 2.6 times (adjusted relative risk (aRR) 2.58, 99 per cent confidence interval (95% CI) 2.18, 3.05) and 1.8 times (aRR 1.81, 95% CI 1.58, 2.06) more likely than Māori cases to generate a token during the Delta period, and this persisted during the Omicron period. Contact tracing organization also influenced location token generation with cases handled by National Case Investigation Service (NCIS) staff being 2.03 (95% CI 1.79, 2.30) times more likely to generate a token than cases managed by clinical staff at local Public Health Units (PHUs). Public uptake and participation in the location-based system independent of contact tracer uptake were estimated at 45%. The positive predictive value (PPV) of the QR code system was estimated to be close to nil for detecting close contacts but close to 100% for detecting casual contacts. Our paper shows that the QR-code-based function of the NZCTA likely made a negligible impact on the COVID-19 response in New Zealand (NZ) in relation to isolating potential close contacts of cases but likely was effective at identifying and notifying casual contacts. Key result• Public uptake and participation in the quick response (QR) code system were high (45%).• Ethnicity and contact tracing organizational level were the main predictors of whether location tokens were generated for cases. • Public health official uptake of the QR code system was suboptimal (only 15% of cases with data utilized by Public Health Units (PHUs)). • The positive predictive value (PPV) of the QR code system for identifying close contacts was close to nil but close to 100% for identifying casual contacts. Active consumer participation in the QR code system was closely correlated with perceived COVID-19 risk in the community.

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Exploration of COVID-19 data in Malaysia through mapper graph

Ling,

Phang,

Liew

et al. 2024

Netw Model Anal Health Inform Bioinforma

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Systematic scoping review of the implementation, adoption, use, and effectiveness of digital contact tracing interventions for COVID-19 in the Western Pacific Region

Cited by 5 publications

References 37 publications

Community-Based Digital Contact Tracing of Emerging Infectious Diseases: Design and Implementation Study With Empirical COVID-19 Cases

Community-Based Digital Contact Tracing of Emerging Infectious Diseases: Design and Implementation Study With Empirical COVID-19 Cases

Population and contact tracer uptake of New Zealand’s QR-code-based digital contact tracing app for COVID-19

Exploration of COVID-19 data in Malaysia through mapper graph

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