Monika Roerig

Climate change is an urgent global crisis requiring collaboration across sectors, including public health. In Canada, extreme heat is a leading cause of weather-related mortality, and cities play a central role in mitigating health impacts. This study examined the governance mechanisms shaping intersectoral extreme heat response in Vancouver, Toronto, and Montreal, Canada. Using a comparative case study methodology, we conducted semi-structured interviews (N = 28) and reviewed local heat response documents (N = 30) between November 2023 and December 2024. Thematic analysis informed cross-case comparisons of governance mechanisms shaping collaborative efforts. Across cases, legislative mandates, formal response plans, and coordinating structures for network engagement supported effective intersectoral collaboration. However, collaboration varied in terms of network governance leadership, intersectoral scope (i.e., the type and number of sectors involved), degree of engagement, and the roles of public health authorities. Co-leadership across sectors in Montreal seems to enable greater intersectoral engagement and integration of heat strategies. Areas for improvement include community-engaged heat response planning and enhanced capacity for conducting heat response outcome evaluations. Public health authorities may inform the strategic direction of future heat strategies by supporting the application of a population health lens and facilitating intersectoral collaboration to better address the upstream determinants of heat health inequities.

Requirements of proof of COVID-19 vaccination were mandated for nonessential businesses and venues by Canada's ten provinces throughout the fall of 2021. Leveraging variations in the timing of these measures across the provinces, we applied event study regression to estimate the impact the announcement of these measures had nationally on age-specific first-dose uptake in the subsequent seven-week period. Proof-of-vaccination mandate announcements were associated with a rapid, significant increase in first-dose uptake, particularly in people younger than age fifty. However, these behavioral changes were short-lived, with uptake returning to preannouncement levels-or lower-in all age groups within six weeks, despite mandates remaining in place for at least four months; this decline occurred earlier and was more apparent among adolescents ages 12-17. We estimated that nationally, 290,168 additional people received their first dose in the seven weeks after provinces announced proof-of-vaccination policies, for a 17.5 percent increase over the number of vaccinations estimated in the absence of these policies. This study provides novel age-specific evidence showing that proof-of-vaccination mandates led to an immediate, significant increase in national first-dose uptake and were particularly effective for increasing vaccination uptake in younger to middle-aged adults. Proof-of-vaccination mandates may be effective short-term policy measures for increasing population vaccination uptake, but their impact may differ across age groups.

Background: Social media is an important way for governments to communicate with the public. This is particularly true in times of crisis, such as the COVID-19 pandemic, during which government officials played a strong role in promoting public health measures such as vaccines. Objective: In Canada, provincial COVID-19 vaccine rollout was delivered in 3 phases aligned with federal government COVID-19 vaccine guidance for priority populations. In this study, we examined how Canadian public officials used Twitter to engage with the public about vaccine rollout and how this engagement has shaped public response to vaccines across jurisdictions. Methods: We conducted a content analysis of tweets posted between December 28, 2020, and August 31, 2021. Leveraging the social media artificial intelligence tool Brandwatch Analytics, we constructed a list of public officials in 3 jurisdictions (Ontario, Alberta, and British Columbia) organized across 6 public official types and then conducted an English and French keyword search for tweets about vaccine rollout and delivery that mentioned, retweeted, or replied to the public officials. We identified the top 30 tweets with the highest impressions in each jurisdiction in each of the 3 phases (approximately a 26-day window) of the vaccine rollout. The metrics of engagement (impressions, retweets, likes, and replies) from the top 30 tweets per phase in each jurisdiction were extracted for additional annotation. We specifically annotated sentiment toward public officials’ vaccine responses (ie, positive, negative, and neutral) in each tweet and annotated the type of social media engagement. A thematic analysis of tweets was then conducted to add nuance to extracted data characterizing sentiment and interaction type. Results: Among the 6 categories of public officials, 142 prominent accounts were included from Ontario, Alberta, and British Columbia. In total, 270 tweets were included in the content analysis and 212 tweets were direct tweets by public officials. Public officials mostly used Twitter for information provision (139/212, 65.6%), followed by horizontal engagement (37/212, 17.5%), citizen engagement (24/212, 11.3%), and public service announcements (12/212, 5.7%). Information provision by government bodies (eg, provincial government and public health authorities) or municipal leaders is more prominent than tweets by other public official groups. Neutral sentiment accounted for 51.5% (139/270) of all the tweets, whereas positive sentiment was the second most common sentiment (117/270, 43.3%). In Ontario, 60% (54/90) of the tweets were positive. Negative sentiment (eg, public officials criticizing vaccine rollout) accounted for 12% (11/90) of all the tweets. Conclusions: As governments continue to promote the uptake of the COVID-19 booster doses, findings from this study are useful in informing how governments can best use social media to engage with the public to achieve democratic goals.

Persons living with dementia and their caregivers often face challenges in accessing support for their complex needs. This study aims to understand how program administrators, people living with dementia, unpaid caregivers, and decision-makers perceive specific dementia care programs and whether they are adequately meeting the needs of individuals living with dementia. Forty semi-structured interviews were conducted between 2018 and 2020 in five North American jurisdictions. Three main gaps were identified (1) disconnected system infrastructure, (2) lack of comprehensive services to meet diverse needs, and (3) inconsistent understandings of dementia. Despite having programs in place, there remain significant limitations in systems that could be addressed to adequately meet the needs of individuals living with dementia and their caregivers.

Across Canada, there were notable differences in the rollout of provincial/territorial COVID-19 vaccination programs, reflecting diverse sociodemographic profiles, geopolitical landscapes, health system designs, and pandemic experiences. We collected information regarding underlying principles and goals, governance and authority, transparency and diversity of communications, activities to strengthen infrastructure and workforce capacity, and entitlement and access in four diverse provinces (British Columbia, Saskatchewan, Ontario, Nova Scotia). Through cross-case analysis, we observed significant differences in provincial rollouts of the primary two-dose vaccination series in adults between December 2020 and December 2021. Nova Scotia was the only province to state explicit coverage goals and adhere to plans tying coverage to the relaxation of public health measures. Both Nova Scotia and British Columbia implemented fully centralized vaccination booking systems. In contrast, Saskatchewan's initial highly centralized approach enabled the rapid delivery of first doses; however, rollout of second doses was slower and more decentralized, occurring primarily through community pharmacies. In alignment with its decentralized health system, Ontario pursued a regionalized approach, primarily led by its existing public health unit network. Our research suggests explicit goals, centralized booking, and flexible delivery strategies improved uptake; however, ongoing learning will be crucial for informing the success of future vaccination efforts.

BACKGROUND Social media is an important way for governments to communicate with the public. This is particularly true in times of crisis, such as the COVID-19 pandemic, during which government officials played a strong role in promoting public health measures such as vaccines. OBJECTIVE In Canada, provincial COVID-19 vaccine rollout was delivered in 3 phases aligned with federal government COVID-19 vaccine guidance for priority populations. In this study, we examined how Canadian public officials used Twitter to engage with the public about vaccine rollout and how this engagement has shaped public response to vaccines across jurisdictions. METHODS We conducted a content analysis of tweets posted between December 28, 2020, and August 31, 2021. Leveraging the social media artificial intelligence tool Brandwatch Analytics, we constructed a list of public officials in 3 jurisdictions (Ontario, Alberta, and British Columbia) organized across 6 public official types and then conducted an English and French keyword search for tweets about vaccine rollout and delivery that mentioned, retweeted, or replied to the public officials. We identified the top 30 tweets with the highest impressions in each jurisdiction in each of the 3 phases (approximately a 26-day window) of the vaccine rollout. The metrics of engagement (impressions, retweets, likes, and replies) from the top 30 tweets per phase in each jurisdiction were extracted for additional annotation. We specifically annotated sentiment toward public officials’ vaccine responses (ie, positive, negative, and neutral) in each tweet and annotated the type of social media engagement. A thematic analysis of tweets was then conducted to add nuance to extracted data characterizing sentiment and interaction type. RESULTS Among the 6 categories of public officials, 142 prominent accounts were included from Ontario, Alberta, and British Columbia. In total, 270 tweets were included in the content analysis and 212 tweets were direct tweets by public officials. Public officials mostly used Twitter for information provision (139/212, 65.6%), followed by horizontal engagement (37/212, 17.5%), citizen engagement (24/212, 11.3%), and public service announcements (12/212, 5.7%). Information provision by government bodies (eg, provincial government and public health authorities) or municipal leaders is more prominent than tweets by other public official groups. Neutral sentiment accounted for 51.5% (139/270) of all the tweets, whereas positive sentiment was the second most common sentiment (117/270, 43.3%). In Ontario, 60% (54/90) of the tweets were positive. Negative sentiment (eg, public officials criticizing vaccine rollout) accounted for 12% (11/90) of all the tweets. CONCLUSIONS As governments continue to promote the uptake of the COVID-19 booster doses, findings from this study are useful in informing how governments can best use social media to engage with the public to achieve democratic goals.

Despite an increase in prevalence of complex chronic conditions and dementia, long-term care services are being continuously pushed out of institutional settings and into the home and community. The majority of people living with dementia in Canada and the United States (U.S.) live at home with support provided by family, friends or other unpaid caregivers. Ten dementia care policy programs and service delivery models across five different North American jurisdictions in Canada and the U.S. are compared deductively using a comparative policy framework originally developed by Richard Rose. One aim of this research was to understand how different jurisdictions have worked to reduce the fragmentation of dementia care. Another aim is to assess, relying on the theory of smart policy layering, the extent to which these policy efforts 'patch' health system structures or add to system redundancies. We find that these programs were introduced in a manner that did not fully consider how to patch current programs and services and thus risk creating further system redundancies. The implementation of these policy programs may have led to policy layers, and potentially to tension among different policies and unintended consequences. One approach to reducing these negative impacts is to implement evaluative efforts that assess 'goodness of fit'. The degree to which these programs have embedded these efforts into an existing policy infrastructure successfully is low, with the possible exception of one program in NY.

Context: Seniors are high users of medications; they are also at risk of being prescribed inappropriate, potentially harmful medications. Taking multiple and/or inappropriate medications can lead to adverse drug events and avoidable health system costs. Interprofessional primary care teams have additional capacity to manage medications for seniors, for example, through pharmacist-supported medication reviews, and multi-professional chronic illness management programs. Objective: To describe and understand the approaches used by Ontario Family Health Teams (FHTs) in managing medications for seniors. Study Design: Qualitative semi-structured interviews. Setting: Interprofessional primary care FHTs in rural Ontario. Population studied: Administrators and clinicians working within FHTs. Results: Virtual interviews were conducted across three FHT sites during the COVID-19 pandemic (n=22). Inductive thematic analysis identified several emerging themes: key challenges, prioritization of services to meet unique patient needs, reliance on external and community-based supports, diverse team configurations (including the role of pharmacists), and modifications/adaptions necessary to care for patients during the COVID-19 pandemic. Electronic health records, team meetings, specialized programs, and patients’ enhanced access to providers was credited for supporting medication management approaches. However, participants from all three FHTs also described challenges with collaboration between physicians and other care providers. Many reported providing services within silos of care, and not in active collaboration with other members of the FHT. Conclusions: All participants recognized the need for tailored approaches to medication management to meet the needs of senior patients. Pharmacists (in the FHT and in the community) were described as integral to the medication management process. Despite the intention to provide interdisciplinary team-based care, challenges in active collaboration within FHTs were observed. Results showed that FHTs, external providers, and community-based supports are co-dependent. Lessons learned from the COVID-19 pandemic highlight the potential for FHTs to transform primary care practices by innovating the delivery of care. One example of this is through the rapid adoption of virtual care, which participants’ report has resulted in better access and medication management for many seniors.