Government social media is widely used for providing updates to and engaging with the public in the COVID-19 pandemic. While Facebook is one of the popular social media used by governments, there is only a scant of research on this platform. This paper aims to understand how government social media should be used and how its engagement changes in prodromal, acute and chronic stages of the pandemic. We collected 1664 posts and 10,805 comments from the Facebook pages of the Macao government from 1 January to 31 October 2020. Using word frequency and content analysis, the results suggest that the engagement was relatively low at the beginning and then surged in the acute stage, with a decreasing trend in the chronic stage. Information about public health measures maintained their engagement in all stages, whereas the engagement of other information was dropping over time. Government social media can be used for increasing vigilance and awareness in the prodromal stage; disseminating information and increasing transparency in the acute stage; and focusing on mental health support and recovery policies in the chronic stage. Additionally, it can be a tool for controlling rumors, providing regular updates and fostering community cohesion in public health crises.

Background: To alleviate the shortage of caregivers associated with disabled persons, China has implemented a pilot policy for long-term care insurance. This policy has the characteristics of "familialization" and "de-familialization" policy orientation, and it is indeed essential to clarify whether the policy has a positive spillover effect on the health of family caregivers, which is of great value to the pilot from local practice to national institutional arrangement. Methods: Based on the China Health and Retirement Longitudinal Study microdata and time-varying DID method, our study used the implementation of the pilot policy as a "quasi-natural experiment" to assess the health spillover effects of the pilot policy on family spousal caregivers. Results: This policy significantly improved the health of spousal caregivers, increasing self-rated health and life satisfaction, and reducing depression; Compared with female, urban and central-western spousal caregivers, male, rural and eastern spousal caregivers were "beneficiaries" in more dimensional health. Conclusions: Our research indicated that spousal caregivers of disabled people, particularly male, rural and eastern spousal caregivers, experienced positive health spillovers after implementing long-term care insurance. These results suggest that the imbalance between supply and demand of nursing staff could be solved in terms of de-familialization and familialization, spousal caregivers should be promoted to equally enjoy the policy benefits on gender, urban–rural and regions.

In recent years, the unrivalled self‐assembly properties of DNA molecules have driven the rapid development of a new class of DNA self‐assembly technology—DNA origami technology. Over the past decade, this technology has enabled the construction of DNA nanostructures with different shapes, such as 2D and 3D structures. Meanwhile, the application of DNA origami are also developed rapidly. DNA origami structures are widely used in nanomaterial preparation and drug delivery due to their characteristics of accurate addressability, excellent programmability, and good biocompatibility, especially in the field of nanomaterial preparation. Such structures provide a new platform to construct nanomaterials with high precision. Herein, the development of DNA origami technology is introduced, and the research progress of 2D and 3D DNA origami in the past two decades is systematically summarized. Then, the application of DNA origami template in nanomaterial preparation is emphasized. Finally, the main challenges and opportunities for nanomaterials fabrication based on DNA origami technology are illustrated.

Social media engagement is a vehicle for effective communication and engagement between governments and individuals, especially in crises such as the COVID-19 pandemic. Additionally, it can be used to communicate resilience measures and receive feedback. This research aims to investigate public social media engagement with resilience measures related to COVID-19 in Macao. We examined 1107 posts and 791 comments about the government’s face mask supply and consumption voucher schemes on Facebook. Using the Crisis Lifecycle model, we partitioned the data and analyzed the content and engagement of related posts, as well as the word semantics in user comments. Our findings show that social media engagement in these resilience measures is high and positive in the early stages of the pandemic, suggesting social media’s potential in mobilizing society, preserving social resilience, and serving as a two-way communication tool in public health emergencies.

Background: Policy effect might be multidimensional and spill over to non-recipients. It is unclear how the implementation of Long-Term Care Insurance (LTCI) policy affects depression in non-disabled people and how this effect differs in different non-disabled groups. Methods: Using time-varying differences-in-differences method and nationally representative health survey data in wave 2011, wave 2013, wave 2015 and wave 2018 from the China Health and Retirement Longitudinal Study, we assessed the effect of LTCI policy on depression in non-disabled people aged 45 years and older, and discussed the heterogeneity of effect across different population characteristics: retirement, financial support and social participation status. Results: We found LTCI policy statistically significant reduced depression by 0.76 units in non-disabled people compared to non-pilot cities. Depression in non-disabled people who unretired, with financial support and without social participation was reduced by 0.8267, 0.7079 and 1.2161 units, respectively. Conclusions: Depression in non-disabled people was statistically significant reduced because of LTCI policy in China, and non-disabled people who unretired, with financial support and without social participation benefited more from LTCI policy. Our findings highlight the depression-reducing effect of LTCI policy in non-recipients and suggest that non-disabled people who unretired, with financial support and without social participation should be concerned during LTCI policy progress.

Long-term care insurance (LTCI) in China may alleviate stress among middle-aged and older adults with disabilities, while potentially influencing their health outcomes and medical services utilization. To evaluate the effect of LTCI on both health outcomes and medical services utilization among middle-aged and older adults, with specific focus on assessing disability’s moderating effect. Using longitudinal data from the China Health and Retirement Longitudinal Study (CHARLS), we employed a time-varying differences-in-differences approach to evaluate the effect of LTCI on both health outcomes and medical services utilization, and to analyze disability’s moderating effect. LTCI effectively increased self-rated health by 0.0907 units and reduced depression levels by 0.4690 units among middle-aged and older adults. The policy also reduced the number of outpatient visits monthly by 0.0705, annual hospitalization probability by 0.0188, and number of hospitalizations by 0.0364. However, disability status attenuated LTCI’s treatment effects, with stronger moderating effect observed in both the IADL subgroup and rural areas. After the implementation of LTCI, improvements in health outcomes and reductions in medical services utilization were observed among middle-aged and older adults. However, there was a critical moderating effect that disability status attenuated LTCI’s treatment effects. These findings reveal disability’s negative moderating role in LTCI’s health effect and the importance of designing policy coverage and carrying out differentiated policy implementation according to disability types and urban-rural distribution.