Identifying barriers and enablers to participation in infection surveillance in Australian residential aged care facilities.

BACKGROUND: Infection surveillance is a vital part of infection prevention and control activities for the aged care sector. In Australia there are two currently available infection and antimicrobial use surveillance programs for residential aged care facilities. These programs are not mandated nor available to all facilities. Development of a new surveillance program will provide standardised surveillance for all facilities in Australia. METHODS: This study aimed to assess barriers and enablers to participation in the two existing infection and antimicrobial use surveillance programs, to improve development and implementation of a new program. A mixed-methods study was performed. Aged Care staff involved in infection surveillance were invited to participate in focus groups and complete an online survey comprising 17 items. Interviews were transcribed and analysed using the COM-B framework. RESULTS: Twenty-nine staff took part in the focus groups and two hundred took part in the survey. Barriers to participating in aged care infection surveillance programs were the time needed to collect and enter data, competing priority tasks, limited understanding of surveillance from some staff, difficulty engaging clinicians, and staff fatigue after the COVID-19 pandemic. Factors that enabled participation were previous experience with surveillance, and sharing responsibilities, educational materials and using data for benchmarking and to improve practice. CONCLUSION: Streamlined and simple data entry methods will reduce the burden of surveillance on staff. Education materials will be vital for the implementation of a new surveillance program. These materials must be tailored to different aged care workers, specific to the aged care context and provide guidance on how to use surveillance results to improve practice.

Superior immunogenicity of mRNA over adenoviral vectored COVID-19 vaccines reflects B cell dynamics independent of anti-vector immunity: Implications for future pandemic vaccines.

Both vector and mRNA vaccines were an important part of the response to the COVID-19 pandemic and may be required in future outbreaks and pandemics. The aim of this study was to validate whether immunogenicity differs for adenoviral vectored (AdV) versus mRNA vaccines against SARS-CoV-2, and to investigate how anti-vector immunity and B cell dynamics modulate immunogenicity. We enrolled SARS-CoV-2 infection-naïve health care workers who had received two doses of either AdV AZD1222 (n = 184) or mRNA BNT162b2 vaccine (n = 274) between April and October 2021. Blood was collected at least once, 10-48 days after vaccine dose 2 for antibody and B cell analyses. Median ages were 42 and 39 years, for AdV and mRNA vaccinees, respectively. Surrogate virus neutralization test (sVNT) and spike binding antibody titres were a median of 4.2 and 2.2 times lower, respectively, for AdV compared to mRNA vaccinees (p < 0.001). Median percentages of memory B cells that recognized fluorescent-tagged spike and RBD were 2.9 and 8.3 times lower, respectively for AdV compared to mRNA vaccinees. Titres of IgG reactive with human adenovirus type 5 hexon protein rose a median of 2.2-fold after AdV vaccination but were not correlated with anti-spike antibody titres. Together the results show that mRNA induced substantially more sVNT antibody than AdV vaccine, which reflected greater B cell expansion and targeting of the RBD rather than an attenuating effect of anti-vector antibodies. ClinicalTrials.gov Identifier: NCT05110911.

Comparative B cell and antibody responses induced by adenoviral vectored and mRNA vaccines against COVID-19.

Both vector and mRNA vaccines were an important part of the response to the COVID-19 pandemic and may be required in future outbreaks and pandemics. However, adenoviral vectored (AdV) vaccines may be less immunogenic than mRNA vaccines against SARS-CoV-2. We assessed anti-spike and anti-vector immunity among infection-naïve Health Care Workers (HCW) following two doses of AdV (AZD1222) versus mRNA (BNT162b2) vaccine. 183 AdV and 274 mRNA vaccinees enrolled between April and October 2021. Median ages were 42 and 39 years, respectively. Blood was collected at least once, 10-48 days after vaccine dose 2. Surrogate virus neutralization test (sVNT) and spike binding antibody titres were a median of 4.2 and 2.2 times lower, respectively, for AdV compared to mRNA vaccinees (p<0.001). Median percentages of memory B cells that recognized fluorescent-tagged spike and RBD were 2.9 and 8.3 times lower, respectively for AdV compared to mRNA vaccinees. Titres of IgG reactive with human Adenovirus type 5 hexon protein rose a median of 2.2-fold after AdV vaccination but were not correlated with anti-spike antibody titres. Together the results show that mRNA induced substantially more sVNT antibody than AdV vaccine due to greater B cell expansion and targeting of the RBD. Pre-existing AdV vector cross-reactive antibodies were boosted following AdV vaccination but had no detectable effect on immunogenicity.

Antimicrobial stewardship in Australia: the role of qualitative research in programme development.

Antimicrobial stewardship (AMS) in Australia is supported by a number of factors, including enabling national policies, sectoral clinical governance frameworks and surveillance programmes, clinician-led educational initiatives and health services research. A One Health research programme undertaken by the National Centre for Antimicrobial Stewardship (NCAS) in Australia has combined antimicrobial prescribing surveillance with qualitative research focused on developing antimicrobial use-related situational analyses and scoping AMS implementation options across healthcare settings, including metropolitan hospitals, regional and rural hospitals, aged care homes, general practice clinics and companion animal and agricultural veterinary practices. Qualitative research involving clinicians across these diverse settings in Australia has contributed to improved understanding of contextual factors that influence antimicrobial prescribing, and barriers and facilitators of AMS implementation. This body of research has been underpinned by a commitment to supplementing 'big data' on antimicrobial prescribing practices, where available, with knowledge of the sociocultural, technical, environmental and other factors that shape prescribing behaviours. NCAS provided a unique opportunity for exchange and cross-pollination across the human and animal health programme domains. It has facilitated synergistic approaches to AMS research and education, and implementation of resources and stewardship activities. The NCAS programme aimed to synergistically combine quantitative and qualitative approaches to AMS research. In this article, we describe the qualitative findings of the first 5 years.

The role of nurses in antimicrobial stewardship near the end of life in aged-care homes: A qualitative study.

BACKGROUND: The excessive use of antimicrobials in aged-care homes is a widely recognised phenomenon. This is problematic because it can harm residents, and is detrimental to public health. Residents in the final month of life are increasingly likely to be prescribed an antimicrobial, commonly without having signs and symptoms of infection that support antimicrobial use. OBJECTIVES: We aimed to describe the perspectives of health professionals on antimicrobial use near the end of life in aged-care homes and investigate the potential opportunities for nurses to undertake antimicrobial stewardship activities near the end of life in aged-care homes. DESIGN: One-on-one, semi-structured, qualitative interviews. SETTINGS AND PARTICIPANTS: Twelve nurses, six general practitioners and two pharmacists providing routine care to residents of aged-care homes in Victoria, Australia were interviewed. Diversity in terms of years of experience, aged-care funding type (government, private-for-profits and not-for-profits) and location (metropolitan and regional) were sought. METHODS: Interviews were transcribed and open coded in a descriptive manner using validated frameworks for understanding behaviour change. The descriptive code was then used to build an interpretive code structure based on questions founded in grounded theory. RESULTS: Thematic saturation was reached after fourteen interviews, and an additional six interviews were conducted to ensure emergent themes were consistent and definitive. There are opportunities for aged-care home nurses to undertake antimicrobial stewardship activities near the end of life in the provision of routine care. Aged-care home nurses are influential in antimicrobial decisions near the end of life in routine care because of their leadership in advance care planning, care co-ordination and care provision in an environment with stopgap and visiting medical resources. Nurses also have social influence among residents, families and medical professionals during critical conversations near the end of life. Past negative social interactions within the aged-care home environment between nurses and families can result in 'fear-based' social influences on antimicrobial prescribing. CONCLUSIONS: The work of facilitating advance care planning, care coordination, care delivery, and communicating with families and medical professionals provide important opportunities for aged-care home nurses to lead appropriate antimicrobial stewardship activities near the end of life.

Urinary tract infections in Australian aged care homes: Antibiotic prescribing practices and concordance to national guidelines.

BACKGROUND: Since 2015 the Aged Care National Antimicrobial Prescribing Survey has collected and reported data on antibiotic use in Australian aged care homes (ACHs) as part of the Australian Commission on Safety and Quality in Health Care's Antimicrobial Use and Resistance in Australia project. The objective of this study was to analyze this data source with regards to prescribing for urinary tract infections (UTIs) to improve the use of antibiotics. METHODS: This cross-sectional study analyzed the 2016 and 2017 survey data. Antibiotic prescribing for urinary tract indications was compared with national guideline recommendations. RESULTS: A total of 662 antibiotic prescriptions from 247 ACHs were analyzed. For all prophylactic antibiotics for UTI, 51.8% were prescribed for longer than 6 months, contrary to the guideline recommendation. Most antibiotics prescribed for treatment (71.6%) were for cystitis. Cefalexin was most frequently selected for treatment of cystitis, with 10.4% of these prescriptions being concordant with the recommendations. Prescribing additional daily doses of cefalexin occurred in 63.2% of prescriptions. CONCLUSIONS: Antimicrobial stewardship activities targeting UTI prophylaxis for durations longer than 6 months, and excessive daily doses of cefalexin to treat cystitis could yield significant reductions in unnecessary antibiotic consumption among Australian residents of ACHs.

Antimicrobial stewardship near the end of life in aged care homes.

BACKGROUND: The objective of this study was to understand how aged care home health professionals perceive antimicrobial use near the end of life and how they perceive potential antimicrobial stewardship activities near the end of life in aged care homes. METHODS: Qualitative semi-structured interviews were undertaken with general practitioners, nurses, and pharmacists who provide routine care in aged care homes in Victoria, Australia. Interviews were coded using frameworks for understanding behavior change. RESULTS: Themes were established within 14 interviews, and an additional 6 interviews were undertaken to ensure thematic saturation. Two major themes emerged: (i) Antimicrobial stewardship activities near the end of life in aged care homes need to enable aged care home nurses to make decisions substantiated by evidence-based clinical knowledge. Antimicrobial stewardship should clearly be part of an aged care home nurse's role, and accreditation standards provide powerful motivation for behavior change. (ii) Antimicrobial stewardship activities near the end of life in aged care homes must address family confidence in resident wellbeing. Antimicrobial stewardship activities should be inclusive of family involvement, and messages should highlight the point that antimicrobial stewardship improves care. CONCLUSIONS: Antimicrobial stewardship activities that reinforce evidence-based clinical decision-making by aged care home nurses and address family confidence in resident wellbeing are required near the end of life in aged care homes. Accreditation standards are important motivators for behavior change in aged care homes.

Optimizing treatment of respiratory tract infections in nursing homes: Nurse-initiated polymerase chain reaction testing.

BACKGROUND: Diagnostic testing using polymerase chain reaction (PCR) is infrequently initiated for diagnosis of respiratory tract infections (RTIs) in nursing homes. The objectives of this study were to determine the feasibility of implementing nurse-initiated PCR testing of respiratory specimens in nursing home settings and to compare antibiotic prescribing prior to and during the implementation. METHODS: This was a pragmatic, historically controlled study in 3 nursing homes (181 total beds) in Melbourne, Australia. RESULTS: The number of PCR tests of respiratory specimens (over 12 months) increased from 5 to 67 when nurses could initiate the tests. Residents with RTI symptoms had a virus identified by PCR in 50.7% of tests, including 14 positive for influenza. Six outbreaks were identified. When clustering was taken into consideration, incidence rates of antibiotic days of therapy did not change (incidence rate ratio = 0.94, 95% confidence interval, 0.25-3.35, P = .92) despite identification of more viral pathogens. CONCLUSIONS: In nursing homes, nurse-initiated PCR testing of respiratory specimens is feasible and useful in terms of identifying the cause of many RTIs and outbreaks, and viruses are common in this context. However, the current study suggests the availability of these test results alone does not impact antibiotic prescribing.

The 2018 Aged Care National Antimicrobial Prescribing Survey: results show room for improvement.

The annual Aged Care National Antimicrobial Prescribing Survey aims to identify local and national prescribing issues and guide antimicrobial stewardship goals In the 2018 point prevalence survey, medication charts of over 20,000 residents were reviewed from 407 participating facilities across Australia On the day of the survey, almost 10% of residents were prescribed an antimicrobial Nearly two-thirds of recently prescribed antimicrobials were for residents who had no documented signs or symptoms of infection Over a quarter of antimicrobials had been prescribed for longer than six months Incomplete documentation was a prominent barrier to proper review of antimicrobial therapy, with the indication, review date or stop date not documented for many prescriptions Recommendations include using appropriate microbiological testing to guide prescribing, following national antimicrobial prescribing guidelines, documenting the indication for the antimicrobial, and its start, stop and review dates, and monitoring and re-evaluating long-term antimicrobial use

Scoping the ethics of dementia research within an Australian human research context.

Research with people with dementia can be ethically challenging because of the effects of dementia on cognitive function. A narrative literature review of ethical human dementia research was conducted, highlighting ethical challenges that can be categorised under the following themes: substitute judgment; how capacity can vary due to risks; barriers to recruiting people with dementia; how to determine capacity to give consent; and gaining assent rather than consent from participants. The results of the review were further analysed in relation to the Australian National Statement on Ethical Conduct in Human Research (National Statement). Gaps in the National Statement include: how capacity should be determined; what defines best interests; how assent and dissent by someone with dementia should be determined and respected; and whether or not people with dementia should be included in high-risk research.

Effectiveness of a targeted exercise intervention in reversing older people's mild balance dysfunction: a randomized controlled trial.

BACKGROUND: Previous research has mainly targeted older people with high risk of falling. The effectiveness of exercise interventions in older people with mild levels of balance dysfunction remains unexplored. OBJECTIVE: This study evaluated the effectiveness of a home balance and strength exercise intervention in older people systematically screened as having mild balance dysfunction. DESIGN: This was a community-based, randomized controlled trial with assessors blinded to group allocation. PARTICIPANTS: Study participants were older people who reported concerns about their balance but remained community ambulant (n=225). After a comprehensive balance assessment, those classified as having mild balance dysfunction (n=165) were randomized into the trial. INTERVENTION: Participants in the intervention group (n=83) received a 6-month physical therapist-prescribed balance and strength home exercise program, based on the Otago Exercise Program and the Visual Health Information Balance and Vestibular Exercise Kit. Participants in the control group (n=82) continued with their usual activities. OUTCOME MEASURES: Laboratory and clinical measures of balance, mobility, and strength were assessed at baseline and at a 6-month reassessment. RESULTS: After 6 months, the intervention group (n=59) significantly improved relative to the control group (n=62) for: the Functional Reach Test (mean difference=2.95 cm, 95% confidence interval [CI]=1.75 to 4.15), the Step Test (2.10 steps/15 seconds, 95% CI=1.17 to 3.02), hip abductor strength (0.02, 95% CI=0.01 to 0.03), and gait step width (2.17 cm, 95% CI=1.23 to 3.11). There were nonsignificant trends for improvement on most other measures. Fourteen participants in the intervention group (23.7%) achieved balance performance within the normative range following the exercise program, compared with 3 participants (4.8%) in the control group. LIMITATIONS: Loss to follow-up (26.6%) was slightly higher than in some similar studies but was unlikely to have biased the results. CONCLUSIONS: A physical therapist-prescribed home exercise program targeting balance and strength was effective in improving a number of balance and related outcomes in older people with mild balance impairment.

Getting Grounded Gracefully: effectiveness and acceptability of Feldenkrais in improving balance.

The Getting Grounded Gracefully program, based on the Awareness Through Movement lessons of the Feldenkrais method, was designed to improve balance and function in older people. Fifty-five participants (mean age 75, 85% women) were randomized to an intervention (twice-weekly group classes over 8 wk) or a control group (continued with their usual activity) after being assessed at baseline and then reassessed 8 wk later. Significant improvement was identified for the intervention group relative to the control group using ANOVA between-groups repeated-measures analysis for the Modified Falls Efficacy Scale score (p = .003) and gait speed (p = .028), and a strong trend was evident in the timed up-and-go (p = .056). High class attendance (88%) and survey feedback indicate that the program was viewed positively by participants and might therefore be acceptable to other older people. Further investigation of the Getting Grounded Gracefully program is warranted.