The 11th Canadian Symposium on Hepatitis C Virus: 'Getting back on track towards hepatitis C elimination'.

Hepatitis C virus (HCV) affects approximately 204,000 Canadians. Safe and effective direct-acting antiviral therapies have contributed to decreased rates of chronic HCV infection and increased treatment uptake in Canada, but major challenges for HCV elimination remain. The 11th Canadian Symposium on Hepatitis C Virus took place in Ottawa, Ontario on May 13, 2022 as a hybrid conference themed 'Getting back on track towards hepatitis C elimination.' It brought together research scientists, clinicians, community health workers, patient advocates, community members, and public health officials to discuss priorities for HCV elimination in the wake of the COVID-19 pandemic, which had devastating effects on HCV care in Canada, particularly on priority populations. Plenary sessions showcased topical research from prominent international and national researchers, complemented by select abstract presentations. This event was hosted by the Canadian Network on Hepatitis C (CanHepC), with support from the Public Health Agency of Canada and the Canadian Institutes of Health Research and in partnership with the Canadian Liver Meeting. CanHepC has an established record in HCV research and in advocacy activities to address improved diagnosis and treatment, and immediate and long-term needs of those affected by HCV infection. The Symposium addressed the remaining challenges and barriers to HCV elimination in priority populations and principles for meaningful engagement of Indigenous communities and individuals with living and lived experience in HCV research. It emphasized the need for disaggregated data and simplified pathways for creating and monitoring interventions for equitably achieving elimination targets.

The Impact of Mask Mandates on Face Mask Usage During the COVID-19 Pandemic: A Longitudinal Survey Study.

BACKGROUND: Face mask usage has been associated with declines in COVID-19 incidence rates worldwide. A handful of studies have examined the factors associated with face mask usage in North America during the COVID-19 pandemic, however much less is known about the patterns of face mask usage and the impact of mask mandates during this time. This information could have important policy implications, now, and in the event of future pandemics. OBJECTIVE: To address existing knowledge gaps, we assessed face mask usage patterns among British Columbia COVID-19 Population Mixing Patterns (BC-Mix) survey respondents, and evaluated the impact of the provincial mask mandate on these usage patterns. METHODS: Between September 2020 and July 2022, adult British Columbia residents completed the online BC-Mix survey, answering questions on the circumstances surrounding face mask usage or lack thereof, movement patterns, and COVID-19-related beliefs. Trends in face mask usage over time were assessed, and associated factors were evaluated using multivariable logistic regression. A stratified analysis was done to examine effect modification by the provincial mask mandate. RESULTS: Of the 44,301 respondents, 81.9% reported wearing face masks during the 23-month period. In-store and public transit mask mandates supported monthly face mask usage rates of approximately 80%, further bolstered up to 92% with the introduction of the provincial mask mandate. Face mask users mostly visited retail locations (51.8%) and travelled alone by car (49.6%), while non-users mostly traveled by car with others (35.2%) to their destinations; most commonly parks (45.7%). Non-users of face masks were much more likely to be male than female, especially in retail locations, and restaurants, bars and cafés. In a multivariable logistic regression model adjusted for possible confounders, factors associated with face mask usage included age, ethnicity, health region, mode of travel, destination, and time period. The odds of face mask usage were 3.68 times greater when the provincial mask mandate was in effect than when it was not (adjusted odds ratio [OR]: 3.68, 95% confidence interval [CI] 3.33-4.05). The impact of the mask mandate was greatest in restaurants, bars, or cafés (aOR: 7.35, 95% CI 4.23-12.78 [mandate] vs. 2.81, 95% CI 1.50-5.26 [no mandate]), and in retail locations (aOR: 19.94, 95% CI 14.86-26.77 [mandate] vs. 7.71, 5.68-10.46 [no mandate]). CONCLUSIONS: Study findings provide added insight into the dynamics of face mask usage during the COVID-19 pandemic. Mask mandates supported increased and sustained high face mask usage rates during the first two years of the pandemic, having the greatest impact in the indoor public locations with limited opportunity for physical distancing targeted by these mandates. These findings highlight the utility of mask mandates in supporting high face mask usage rates during the COVID-19 pandemic.

Association between close interpersonal contact and vaccine hesitancy: Findings from a population-based survey in Canada

Background Vaccine hesitancy threatens efforts to bring the coronavirus disease 2019 (COVID-19) pandemic to an end. Given that social or interpersonal contact is an important driver for COVID-19 transmission, understanding the relationship between contact rates and vaccine hesitancy may help identify appropriate targets for strategic intervention. The purpose of this study was to assess the association between interpersonal contact and COVID-19 vaccine hesitancy among a sample of unvaccinated adults in the Canadian province of British Columbia (BC). Methods Unvaccinated individuals participating in the BC COVID-19 Population Mixing Patterns Survey (BC-Mix) were asked to indicate their level of agreement to the statement, “I plan to get the COVID-19 vaccine.” Multivariable multinomial logistic regression was used to assess the association between self-reported interpersonal contact and vaccine hesitancy, adjusting for age, sex, ethnicity, educational attainment, occupation, household size and region of residence. All analyses incorporated survey sampling weights based on age, sex, geography, and ethnicity. Results Results were based on survey responses collected between March 8, 2021 and December 6, 2021, by a total of 4,515 adults aged 18 years and older. Overall, 56.7% of respondents reported that they were willing to get the COVID-19 vaccine, 27.0% were unwilling and 16.3% were undecided. We found a dose-response association between interpersonal contact and vaccine hesitancy. Compared to individuals in the lowest quartile (least contact), those in the fourth quartile (highest contact), third quartile and second quartile groups were more likely to be vaccine hesitant, with adjusted odd ratios (aORs) of 2.85 (95% CI: 2.02, 4.00), 1.91(95% CI: 1.38, 2.64), 1.78 (95% CI: 1.13, 2.82), respectively. Conclusion Study findings show that among unvaccinated people in BC, vaccine hesitancy is greater among those who have high contact rates, and hence potentially at higher risk of acquiring and transmitting infection. This may also impact future uptake of booster doses.

Cohort profile: the British Columbia COVID-19 Population Mixing Patterns Survey (BC-Mix).

PURPOSE: Several non-pharmaceutical interventions, such as physical distancing, handwashing, self-isolation, and school and business closures, were implemented in British Columbia (BC) following the first laboratory-confirmed case of COVID-19 on 26 January 2020, to minimise in-person contacts that could spread infections. The BC COVID-19 Population Mixing Patterns Survey (BC-Mix) was established as a surveillance system to measure behaviour and contact patterns in BC over time to inform the timing of the easing/re-imposition of control measures. In this paper, we describe the BC-Mix survey design and the demographic characteristics of respondents. PARTICIPANTS: The ongoing repeated online survey was launched in September 2020. Participants are mainly recruited through social media platforms (including Instagram, Facebook, YouTube, WhatsApp). A follow-up survey is sent to participants 2-4 weeks after completing the baseline survey. Survey responses are weighted to BC's population by age, sex, geography and ethnicity to obtain generalisable estimates. Additional indices such as the Material and Social Deprivation Index, residential instability, economic dependency, and others are generated using census and location data. FINDINGS TO DATE: As of 26 July 2021, over 61 000 baseline survey responses were received of which 41 375 were eligible for analysis. Of the eligible participants, about 60% consented to follow-up and about 27% provided their personal health numbers for linkage with healthcare databases. Approximately 83.5% of respondents were female, 58.7% were 55 years or older, 87.5% identified as white and 45.9% had at least a university degree. After weighting, approximately 50% were female, 39% were 55 years or older, 65% identified as white and 50% had at least a university degree. FUTURE PLANS: Multiple papers describing contact patterns, physical distancing measures, regular handwashing and facemask wearing, modelling looking at impact of physical distancing measures and vaccine acceptance, hesitancy and uptake are either in progress or have been published.

Impact of COVID-19 pandemic on HCV care cascade in Rwanda: Ecological study from July 2019 to June 2021.

Content available: Author Interview and Audio Recording.

Impact of COVID-19-related public health measures on HCV testing in British Columbia, Canada: An interrupted time series analysis.

BACKGROUND & AIMS: Public health measures introduced to limit transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes coronavirus disease 2019 (COVID-19), also disrupted various healthcare services in many regions worldwide, including British Columbia (BC), Canada. We assessed the impact of these measures, first introduced in BC in March 2020, on hepatitis C (HCV) testing and first-time HCV-positive diagnoses within the province. METHODS: De-identified HCV testing data for BC residents were obtained from the provincial Public Health Laboratory. Weekly changes in anti-HCV, HCV RNA and genotype testing episodes and first-time HCV-positive (anti-HCV/RNA/genotype) diagnoses from January 2018 to December 2020 were assessed and associations were determined using segmented regression models examining rates before vs after calendar week 12 of 2020, when measures were introduced. RESULTS: Average weekly HCV testing and first-time HCV-positive diagnosis rates fell immediately following the imposition of public health measures by 62.3 per 100 000 population and 2.9 episodes per 1 000 000 population, respectively (P < .0001 for both), and recovered in subsequent weeks to near pre-March 2020 levels. Average weekly anti-HCV positivity rates decreased steadily pre-restrictions and this trend remained unchanged afterwards. CONCLUSIONS: Reductions in HCV testing and first-time HCV-positive diagnosis rates, key drivers of progression along the HCV care cascade, occurred following the introduction of COVID-19-related public health measures. Further assessment will be required to better understand the full impact of these service disruptions on the HCV care cascade and to inform strategies for the re-engagement of people who may have been lost to care because of these measures.

The perspective of Canadian health care professionals on abortion service during the COVID-19 pandemic.

BACKGROUND: The COVID-19 pandemic and pandemic response created novel challenges for abortion services. Canada was uniquely positioned to transition to telemedicine because internationally common restrictions on abortion medication were removed before the pandemic. OBJECTIVE: We sought to characterize the experiences of abortion health care professionals in Canada during the COVID-19 pandemic and the impact of the pandemic response on abortion services. METHODS: We conducted a sequential mixed methods study between July 2020 and January 2021. We invited physicians, nurse practitioners and administrators to participate in a cross-sectional survey containing an open-ended question about the impact of the pandemic response on abortion care. We employed an inductive codebook thematic analysis, which informed the development of a second, primarily quantitative survey. RESULTS: Our initial survey had 307 respondents and our second had 78. Fifty-three percent were family physicians. Our first survey found respondents considered abortion access essential. We identified three key topicss: access to abortion care was often maintained despite pandemic-related challenges (e.g. difficulty obtaining tests, additional costs); change of practice to low-touch medication abortion care and provider perceptions of patient experience, including shifting demand, telemedicine acceptability and increased rural access. The second survey indicated uptake of telemedicine medication abortion among 89% of participants except in Quebec, where regulations meant procedures were nearly exclusively surgical. Restrictions did not delay care according to 76% of participants. CONCLUSIONS: Canadian health care professionals report their facilities deemed abortion an essential service. Provinces and territories, except Quebec, described a robust pandemic transition to telemedicine to ensure access to services. PODCAST: An accompanying podcast is available in the Supplementary Data, in which the authors Dr Madeleine Ennis and Kate Wahl discuss their research on how family planning care and access to abortion services have changed during the COVID-19 pandemic.

Access to abortion care was challenged by the response to COVID-19. Canada had fewer restrictions on medical abortion than many other countries when the pandemic began. The goal of this study was to describe the experiences of health care practitioners providing abortion in Canada and the impact of the pandemic and the pandemic response measures on abortion services. We conducted two surveys of physicians, nurse practitioners and administrators between July 2020 and January 2021. Most of the health care practitioners who participated reported that medical and surgical abortion care were essential and that, except in the province of Quebec, there was a rapid transition to virtual telemedicine care for first trimester abortions. Several practitioners said that virtual care made abortion more accessible. Other practitioners reported that it was challenging to order certain tests, access operating room facilities or make referrals for late second trimester cases. Practitioners felt that patients had strong fears about COVID-19 exposure and reported that limited contraception access was increasingly a reason for seeking abortion care. The results of the study suggested that abortion was considered essential and that the pandemic instigated a transition to virtual care in all provinces and territories except Quebec.