Improving rates of immunisation in refugee populations in Australia.

Despite an established humanitarian program running for many years, the health needs of refugees resettled in Australia, particularly immunisation, have not been met adequately. Under-immunisation is one of the top health issues for this population. While there is no population-level immunisation coverage data, seroprevalence studies based on small cohorts of refugees show suboptimal immunity to various vaccine-preventable diseases and lower vaccine coverage for this group than the general population. This is compounded by gaps in immunisation policy and service delivery that further perpetuate access issues and may contribute to under-immunisation. This is particularly pertinent against the backdrop of the coronavirus disease 2019 (COVID-19) pandemic, where there have been significant disruptions in the delivery of routine and catch-up immunisations. This paper briefly analyses the status quo and draws on the key policy considerations for enhancing the equitable provision of immunisation for refugees as recommended by the 2019 World Health Organisation technical guidance report to provide a clear, overarching direction for empirical work on immunisation service delivery for refugees in Australia.

"It's no use saying it in English": A qualitative study exploring community leaders' perceptions of the challenges and opportunities with translating and interpreting COVID-19 related public health messaging to reach ethnic minorities in Australia.

BACKGROUND: The Australian Government implemented a range of public health response strategies and communication approaches to reduce the spread of COVID-19; however, concerns have been raised around a failure to sufficiently consider culturally and linguistically diverse (CaLD) communities in these processes. This research aimed to understand the factors that have impacted COVID-19 communication and engagement efforts during the pandemic from the perspective of key CaLD community and faith-based leaders. A further aim was to understand the processes that could be adopted to support future communication strategies, including promoting pandemic-related vaccines. APPROACH: This study included 29 key informant interviews with community and faith-based leaders in New South Wales, Australia. RESULTS: The overwhelming message from community leaders was a sense of shared responsibility between their organisations and governments in communicating pertinent and accurate COVID-19 related information to CaLD communities. They expressed a sense of duty to keep their community members safe. However, community leaders and others shouldered significant costs related to resources and time that need to be acknowledged by governments in preparing for future disease outbreaks. They felt that governments should consider: 1) improving communication between governments and CaLD organisations; 2) responding to the specific CaLD needs with greater agility; 3) foregrounding social media in their communication strategy; 4) reinvesting in local public health units to know their population; 5) developing a health ambassadors model program; 6) preparing a hybrid model of translators/interpreters to fill the gap; and, 7) reimagining vaccine information campaigns to target CaLD communities better. CONCLUSION: Given the technical details about the COVID-19 virus conveyed in government information campaigns and the media, ensuring the most vulnerable populations, including people from CaLD backgrounds, access clear, concise and timely public health messaging from governments and community organisations requires further attention.

Measles, mumps, rubella and varicella antibodies among international and domestic university students.

BACKGROUND: Vaccine-preventable infections are generally well controlled in Australia. However, gaps in immunity can lead to outbreaks and are important to identify. Young adults are a highly mobile population and a potential source of imported infections. We aimed to evaluate anti- measles, mumps, rubella and varicella (MMR&V) IgG seroprevalence and explore factors relating to antibody seropositivity. METHODS: A cross-sectional online survey was conducted among students from a large Australian university to collect demographic, vaccination, infection and travel characteristics. Blood samples were collected to measure MMR&V seroprevalence. Logistic regression was used to identify factors associated with seropositivity. RESULTS: Among 804 university students, seroprevalence (positive or equivocal) for measles was 82.3% (95% CI 79.6-84.8%), mumps 79.5% (95% CI 76.7-82.3%), rubella 91.5% (95% CI 89.6-93.5%) and varicella 86.2% (95% CI 84.1-88.8%), with 452 (56.2%, 95% CI 52.8-59.6) seropositive to all four viruses. Varicella seropositivity was highest in the older birth cohort (born 1988-1991). Measles seropositivity was higher for international students compared to domestic students. Among international students, mumps seroprevalence was significantly lower than measles and rubella seroprevalence. International travel in the previous 12 months was reported by 63.1% of students, but only 18.2% of travellers reported seeking pre-travel health advice prior to most recent international travel. CONCLUSIONS: Overall, this study suggests immunity to MMR&V is sub-optimal. We found the university student population to be highly mobile and unlikely to seek pre-travel advice; thus, they are a potential source of infection importation. The implementation of university immunization policies could address the gaps identified and our findings can inform the development of targeted vaccination campaigns.

Quality intrapartum care expectations and experiences of women in sub-Saharan African Low and Low Middle-Income Countries: a qualitative meta-synthesis.

BACKGROUND: Woman-centred maternity care is respectful and responsive to women's needs, values, and preferences. Women's views and expectations regarding the quality of health services during pregnancy and childbirth vary across settings. Despite the need for context-relevant evidence, to our knowledge, no reviews focus on what women in sub-Saharan African Low and Low Middle-Income Countries (LLMICs) regard as quality intrapartum care that can inform quality guidelines in countries. METHODS: We undertook a qualitative meta-synthesis using a framework synthesis to identify the experiences and expectations of women in sub-Saharan African LLMICs with quality intrapartum care. Following a priori protocol, we searched eight databases for primary articles using keywords. We used Covidence to collate citations, remove duplicates, and screen articles using a priori set inclusion and exclusion criteria. Two authors independently screened first the title and abstracts, and the full texts of the papers. Using a data extraction excel sheet, we extracted first-order and second-order constructs relevant to review objectives. The WHO framework for a positive childbirth experience underpinned data analysis. RESULTS: Of the 7197 identified citations, 30 articles were included in this review. Women's needs during the intrapartum period resonate with what women want globally, however, priorities regarding the components of quality care for women and the urgency to intervene differed in this context given the socio-cultural norms and available resources. Women received sub-quality intrapartum care and global standards for woman-centred care were often compromised. They were mistreated verbally and physically. Women experienced poor communication with their care providers and non-consensual care and were rarely involved in decisions concerning their care. Women were denied the companion of choice due to cultural and structural factors. CONCLUSION: To improve care seeking and satisfaction with health services, woman-centred care is necessary for a positive childbirth experience. Women must be meaningfully engaged in the design of health services, accountability frameworks, and evaluation of maternal services. Research is needed to set minimum indicators for woman-centred outcomes for low-resource settings along with actionable strategies to enhance the quality of maternity care based on women's needs and preferences.

Vaccine provider views on the impact of COVID-19 on immunisation in general practice: a qualitative study.

BACKGROUND: General practitioners and general practice nurses are the most trusted and experienced sources of vaccine information for Australians and are the principal providers of routine immunisation in New South Wales, Australia. This study explored perceived barriers and challenges to the rollout of the COVID-19 immunisation program and continued provision of routine immunisation through general practice. METHODS: Structured in-depth interviews were conducted between 29 April and 8 July 2021 with general practitionerss and general practice nurses working in accredited general practices in the Greater Sydney area. Interviews were transcribed verbatim and analysed thematically. RESULTS: Fifteen participants (12 general practitioners and three general practice nurses) were interviewed. Participants considered the COVID-19 vaccine rollout to significantly burden general practice at the cost of delivery of routine preventative care. Patient fear and anxiety and vaccine hesitancy were perceived as major challenges to the provision of all immunisations, exacerbated by media coverage of shifting recommendations related to COVID-19 vaccine adverse events. Inadequate communication from government bodies contributed to a perceived erosion of patient trust in general practice. Participants considered routine immunisation to be minimally disrupted owing to robust practice-based recall and reminder systems and legislated immunisation requirements for children. CONCLUSION: The role of general practitioners and general practice nurses in the COVID-19 vaccine rollout was seen to be one of great burden and complexity. As the primary providers of immunisation in New South Wales, continued communication with and support for general practice, both financially and informationally, is pivotal to the sustained successful provision of routine and COVID-19 immunisation.

Women Taking a Folic Acid Supplement in Countries with Mandatory Food Fortification Programs May Be Exceeding the Upper Tolerable Limit of Folic Acid: A Systematic Review.

BACKGROUND: In preconception and pregnancy, women are encouraged to take folic acid-based supplements over and above food intake. The upper tolerable limit of folic acid is 1000 mcg per day; however, this level was determined to avoid masking a vitamin B12 deficiency and not based on folic acid bioavailability and metabolism. This review's aim is to assess the total all-source intake of folate in women of childbearing age and in pregnancy in high-income countries with folate food fortification programs. METHODS: A systematic search was conducted in five databases to find studies published since 1998 that reported folate and folic acid intake in countries with a mandatory fortification policy. RESULTS: Women of childbearing age do not receive sufficient folate intake from food sources alone even when consuming fortified food products; however, almost all women taking a folic acid-based supplement exceed the upper tolerable limit of folic acid intake. CONCLUSIONS: Folic acid supplement recommendations and the upper tolerable limit of 1000 mcg set by policy makers warrant careful review in light of potential adverse effects of exceeding the upper tolerable limit on folic acid absorption and metabolism, and subsequent impacts on women's health during their childbearing years.

Speaking COVID-19: supporting COVID-19 communication and engagement efforts with people from culturally and linguistically diverse communities.

BACKGROUND: Since the emergence of COVID-19, issues have been raised regarding the approach used to engage with Culturally and Linguistically Diverse (CaLD) communities during this public health crisis. This study aimed to understand the factors impacting communication and engagement efforts during the COVID-19 pandemic from the perspective of crucial CaLD community stakeholders and opinion leaders. METHODS: Forty-six semi-structured telephone interviews were undertaken with key stakeholders who have an active role (established before the pandemic) in delivering services and other social support to CaLD communities in Australia. RESULTS: Seven key themes emerged: (1) the digital divide and how to connect with people; (2) information voids being filled by international material; (3) Differentiating established with new and emerging communities' needs; (4) speaking COVID-19; (5) ineffectiveness of direct translations of English language resources; (6) coordination is needed to avoid duplication and address gaps and (7) recognising the improvements in governments' approach. CONCLUSION: Alliances must be set up that can be activated in the future to reduce issues around resource development, translation, and dissemination of messages to minimise gaps in the response. Financial assistance must be provided in a timely way to community organisations to support the development and dissemination of culturally appropriate communication materials.

Factors influencing refugees' willingness to accept COVID-19 vaccines in Greater Sydney: a qualitative study.

OBJECTIVES: Achieving high vaccination coverage is a critical strategy to reducing the spread of COVID-19 infection. This study, undertaken before the Delta variant outbreak, aimed to understand potential drivers and barriers influencing COVID-19 vaccine uptake for refugees. METHODS: Four focus group interviews were conducted with 37 refugees from four language groups (Arabic, Dari, Dinka and Karen). Data were analysed thematically. RESULTS: Willingness to accept COVID-19 vaccines was associated with participants' perceptions of disease severity, and benefits such as increased immunity against COVID-19 disease and prevention of the spread of the disease. Cues for increasing individual willingness to get vaccinated included obtaining information from trusted sources and community engagement. By contrast, information gaps on vaccines compounded by misinformation on social media contributed to a reluctance to be vaccinated. CONCLUSION: As this study was conducted before the Delta variant outbreak, participants' stance on COVID-19 vaccines may have changed. However, addressing vaccine literacy needs for this group remains an on-going priority. Health promotion initiatives must be tailored to the different socio-cultural contexts of each community. IMPLICATIONS FOR PUBLIC HEALTH: Engagement with refugee populations is critical for optimising access and uptake of vaccines to protect health, prevent death and ensure that control of the pandemic is equitable. This may also provide valuable public health lessons for other marginalised populations.

Seroprevalence of hepatitis B antibodies among international and domestic university students.

Chronic hepatitis B prevalence is low in most Australian populations, with universal infant HBV vaccination introduced in 2000. Migrants from high prevalence countries are at risk of acquisition before arrival and non-immune adults are potentially at risk through skin penetrating procedures and sexual contact, particularly during international travel. The risk profile of young adult students, many from high prevalence countries, is inadequately understood. A cross-sectional online survey conducted among university students collected data on demographic, vaccination and travel characteristics and blood samples were tested for hepatitis B surface antibody (HBsAb) and hepatitis B core antibody (HBcAb). Analyses identified factors associated with HBsAb seroprevalence and self-reported vaccination. The serosurvey was completed by 804 students born between 1988 and 1993, with 613/804 (76.2%, 95% CI 73.2-79.1) self-reporting prior HBV vaccination. Overall, 526/804 (65.4%, 95% CI 62.0%-68.6%) students were seropositive to HBsAb, including 438/613 (71.5%, 95% CI 67.8-74.9) students self-reporting a prior HBV vaccine and 88/191 (46.1%, 95% CI 39.2-53.2) students self-reporting no prior HBV vaccine. Overall, 8/804 (1.0%, 95% CI 0.5%-2.0%) students were HBcAb positive, of whom 1/804 (0.1%, 95% CI 0.02%-0.7%) was currently infectious. The prevalence of chronic HBV infection was low. However, more than one in four students were susceptible to HBV and over-estimated their immunity. Future vaccination efforts should focus on domestic students born before the introduction of the infant program and all international students. Screening and vaccination of students, including through campus-based health services, are an opportunity to catch-up young adults prior to undertaking at-risk activities, including international travel.

The controversies surrounding Giardia intestinalis assemblages A and B.

Giardia intestinalis continues to be one of the most encountered parasitic diseases around the world. Although more frequently detected in developing countries, Giardia infections nonetheless pose significant public health problems in developed countries as well. Molecular characterisation of Giardia isolates from humans and animals reveals that there are two genetically different assemblages (known as assemblage A and B) that cause human infections. However, the current molecular assays used to genotype G. intestinalis isolates are quite controversial. This is in part due to a complex phenomenon where assemblages are incorrectly typed and underreported depending on which targeted locus is sequenced. In this review, we outline current knowledge based on molecular epidemiological studies and raise questions as to the reliability of current genotyping assays and a lack of a globally accepted method. Additionally, we discuss the clinical symptoms caused by G. intestinalis infection and how these symptoms vary depending on the assemblage infecting an individual. We also introduce the host-parasite factors that play a role in the subsequent clinical presentation of an infected person, and explore which assemblages are most seen globally.

General practitioners' perceptions on the feasibility and acceptability of implementing a risk prediction checklist to support their end-of-life discussions in routine care: a qualitative study.

BACKGROUND: General practitioners' (GPs) play a central role in facilitating end-of-life discussions with older patients nearing the end-of-life. However, prognostic uncertainty of time to death is one important barrier to initiation of these discussions. OBJECTIVE: To explore GPs' perceptions of the feasibility and acceptability of a risk prediction checklist to identify older patients in their last 12 months of life and describe perceived barriers and facilitators for implementing end-of-life planning. METHODS: Qualitative, semi-structured interviews were conducted with 15 GPs practising in metropolitan locations in New South Wales and Queensland between May and June 2019. Data were analysed thematically. RESULTS: Eight themes emerged: accessibility and implementation of the checklist, uncertainty around checklist's accuracy and usefulness, time of the checklist, checklist as a potential prompt for end-of-life conversations, end-of-life conversations not an easy topic, end-of-life conversation requires time and effort, uncertainty in identifying end-of-life patients and limited community literacy on end-of-life. Most participants welcomed a risk prediction checklist in routine practice if assured of its accuracy in identifying which patients were nearing end-of-life. CONCLUSIONS: Most participating GPs saw the value in risk assessment and end-of-life planning. Many emphasized the need for appropriate support, tools and funding for prognostic screening and end-of-life planning for this to become routine in general practice. Well validated risk prediction tools are needed to increase clinician confidence in identifying risk of death to support end-of-life care planning.

Immunisation for refugees in Australia: a policy review and analysis across all States and Territories.

OBJECTIVE: Although people of refugee background are likely to be under-immunised before and after resettlement, no study to date has evaluated refugee specific immunisation policies in Australia. We developed a framework to analyse immunisation policies across Australia to highlight the strengths and gaps so as to inform development of more effective refugee specific immunisation policies. METHODS: We sourced publicly available immunisation policy documents from state and territory government websites. Content analysis of seven policy documents was undertaken using a developed framework comprising crucial policy determinants. RESULTS: Immunisation policy differed substantially across the jurisdictions. While most policies did not highlight the importance of data collection on immunisation for refugees and the public funding of vaccines for refugees, policy determinants such as accessibility and obligations were fulfilled by most jurisdictions. CONCLUSION: Our findings indicate stark differences in immunisation policy for people of refugee background across Australia. Highlighted gaps demonstrate the need to revise current policies so that they are aligned with their intended outcome of enhancing uptake of vaccines and improving immunisation coverage among resettled refugees in Australia. Implications for public health: Immunisation policy development for refugees needs to be robust enough to ensure equitable health services to this group.

Influenza vaccine as a coronary intervention for prevention of myocardial infarction.

Cardiovascular disease (CVD) is the leading cause of morbidity and mortality globally. Influenza is one of the leading infectious causes of morbidity and mortality globally, and evidence is accumulating that it can precipitate acute myocardial infarction (AMI). This is thought to be due to a range of factors including inflammatory release of cytokines, disruption of atherosclerotic plaques and thrombogenesis, which may acutely occlude a coronary artery. There is a large body of observational and clinical trial evidence that shows that influenza vaccine protects against AMI. Estimates of the efficacy of influenza vaccine in preventing AMI range from 15% to 45%. This is a similar range of efficacy compared with the accepted routine coronary prevention measures such as smoking cessation (32-43%), statins (19-30%) and antihypertensive therapy (17-25%). Influenza vaccine should be considered as an integral part of CVD management and prevention. While it is recommended in many guidelines for patients with CVD, rates of vaccination in risk groups aged <65 years are very low, in the range of 30%. The incorporation of vaccination into routine CVD prevention in patient care requires a clinical practice paradigm change.

Improving the uptake of pre-travel health advice amongst migrant Australians: exploring the attitudes of primary care providers and migrant community groups.

BACKGROUND: Migrant travellers who return to their country of origin to visit family and friends (VFR) are less likely to seek travel-related medical care and are less likely to adhere to recommended medications and travel precautions. Through this study, we aimed to get an understanding of the views of stakeholders from community migrant centres and primary care providers on barriers for migrants, particularly from non-English speaking backgrounds, in accessing travel health advice and the strategies that could be used to engage them. METHODS: A qualitative study involving 20 semi-structured interviews was undertaken in Sydney, Australia between January 2013 and September 2014. Thematic analysis was undertaken. RESULTS: Language barriers, a lower perceived risk of travel-related infections and the financial costs of seeking pre-travel health care were nominated as being the key barriers impacting on the uptake of pre-travel health advice and precautions. To overcome pre-existing language barriers, participants advocated for the use of bilingual community educators, community radio, ethnic newspapers and posters in the dissemination of pre-travel health information. CONCLUSIONS: Travel is a major vector of importation of infectious diseases into Australia, and VFR travellers are at high risk of infection. Collaboration between the Government, primary care physicians, migrant community groups and migrants themselves is crucial if we are to be successful in reducing travel-related risks among this subgroup of travellers.

Acute myocardial infarction and influenza: a meta-analysis of case-control studies.

OBJECTIVE: Acute myocardial infarction (AMI) is the leading cause of death and disability globally. There is increasing evidence from observational studies that influenza infection is associated with AMI. In patients with known coronary disease, influenza vaccination is associated with a lower risk of cardiovascular events. However, the effect of influenza vaccination on incident AMI across the entire population is less well established. METHOD: The purpose of our systematic review of case-control studies is twofold: (1) to estimate the association between influenza infection and AMI and (2) to estimate the association between influenza vaccination and AMI. Cases included those conducted with first-time AMI or any AMI cases. Studies were appraised for quality and meta-analyses using random effects models for the influenza exposures of infection, and vaccination were conducted. RESULTS: 16 studies (8 on influenza vaccination, 10 on influenza infection and AMI) met the eligibility criteria, and were included in the review and meta-analysis. Recent influenza infection, influenza-like illness or respiratory tract infection was significantly more likely in AMI cases, with a pooled OR 2.01 (95% CI 1.47 to 2.76). Influenza vaccination was significantly associated with AMI, with a pooled OR of 0.71 (95% CI 0.56 to 0.91), equating to an estimated vaccine effectiveness of 29% (95% CI 9% to 44%) against AMI. CONCLUSIONS: Our meta-analysis of case-control studies found a significant association between recent respiratory infection and AMI. The estimated vaccine effectiveness against AMI was comparable with the efficacy of currently accepted therapies for secondary prevention of AMI from clinical trial data. A large-scale randomised controlled trial is needed to provide robust evidence of the protective effect of influenza vaccination on AMI, including as primary prevention.

Increasing trends of herpes zoster in Australia.

BACKGROUND: Increasing trends in incidence of herpes zoster (HZ) have been reported in Australia and internationally. This may reflect the impact of childhood VZV vaccination programs introduced universally in Australia in late 2005. The objective of this study was to evaluate changes in incidence of HZ and PHN in Australia over time, and associated healthcare resource utilisation. METHODS: Australian data on general practice (GP) encounters for HZ, specific antiviral prescribing data from the pharmaceutical benefits scheme, emergency department presentations from the states of NSW and Victoria and national hospitalisation data for HZ were analysed for time trends using regression models. Two time periods (2000-2006 and 2006-2013) were compared which correspond broadly with the pre- and post- universal VZV vaccination period. RESULTS: All data sources showed increasing rates of HZ with age and over time. The GP database showed a significant annual increase in encounters for HZ of 2.5 per 100,000 between 1998 and 2013, and the rates of prescriptions for HZ increased by 4.2% per year between 2002 and 2012. In the 60+ population HZ incidence was estimated to increase from 11.9 to 15.4 per 1,000 persons using GP data or from 12.8 to 14.2 per 1,000 persons using prescription data (p<0.05, between the two periods). Hospitalisation data did not show the same increasing trend over time, except for the age group ≥80 years. Most emergency visits for HZ were not admitted, and showed significant increases over time. DISCUSSION: The burden of HZ in Australia is substantial, and continues to increase over time. This increase is seen both pre- and post-universal VZV vaccination in 2005, and is most prominent in the older population. The substantial burden of HZ, along with ageing of the Australian population and the importance of healthy ageing, warrants consideration of HZ vaccination for the elderly.