MJA 12 12 Cover

Issues

Volume 217 Issue 11

12 December 2022

News

12 December 2022 Free

News briefs

Changes to bat habitats facilitate Hendra virus spillover risk Research from Griffith University, published in Nature, examined 25years of data on land‐use change, bat behaviour, and spillover of Hendra virus from bats to horses in subtropical Australia and revealed that human activities are causing bats to adopt behaviours previously linked to short term nutritional stress, and that this change in behaviour is increasing the risk of Hendra virus spillover. Previous correlational studies associate spillover with broad‐scale habitat destruction and encroachment of people into natural landscapes, increasing opportunities for contact between wildlife, domestic animals, and people. The current study highlights that habitat destruction, agriculture and people were important in broadly determining where risk was high, but not simply because encroachment directly led to increased opportunities for contact as previously assumed. Instead, the researchers found that flying foxes responded to land‐use change by shifting their distribution and invoking behaviours that they would normally use to avoid climate‐driven starvation associated with El Niño events, such as feeding on introduced plants in horse paddocks. This was causing them to shift into agricultural areas that did not provide native food over winter. Extensive clearing of forests that flower in winter has led to a reduction in the number of years when abundant flowering occurs, reducing the reliability of this natural source of protection and increasing the risk of spillovers. “We propose that restoration of this critical habitat will restore functioning ecosystems, improve the health of flying foxes, reduce their reliance on urban and agricultural areas, and protect horses and people against spillover of Hendra and other viruses,” said lead author Dr Peggy Eby, from the University of New South Wales. https://www.nature.com/articles/s41586‐022‐05506‐2 Nasal vaccine strategy could improve COVID‐19 protection Researchers from the Centenary Institute and the University of Sydney have developed a new nasal vaccination strategy that induces potent lung immunity and protection against severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2). The approach has been tested successfully in mice and has the potential to be a powerful tool for enhancing protection against coronavirus disease 2019 (COVID‐19) infection and minimising ongoing viral spread. Made up of the SARS‐CoV‐2 spike protein and an adjuvant called Pam2Cys (a molecule that helps stimulate a stronger immune response in the body), which was developed by Professor Richard Payne, National Health and Medical Research Council Investigator in the University of Sydney's Faculty of Science, the new vaccine was delivered via simply breathing in through the nose. It prompted substantial levels of neutralising antibodies and increased T cell responses in the lungs and airways of the mice that were tested. In the mice study, the new vaccine was delivered nasally, making its way through the respiratory tract, adhering to the tissues of the nasal cavity, airways and lungs. Testing showed the generation of high levels of protective antibodies in the airways and increased T cell responses in the lungs (T cells help destroy SARS‐CoV‐2‐infected cells). Significantly, none of the vaccinated mice became infected with COVID‐19. “Our vaccine differs from most current COVID‐19 vaccines in that it enables generation of an immune response directly in those areas of the body that are likely to be the first point of contact for the virus — the nose, airway and lungs. This may help explain the vaccine's effectiveness,” said lead author Dr Anneliese Ashhurst, a research fellow at the University of Sydney and the Centenary Institute. The study was published in Nature Communications. https://www.nature.com/articles/s41467‐022‐34297‐3

Editorial

Perspectives

Women's health 31 October 2022 Open Access

Australian fertility preservation guidelines for people with cancer 2022: review and recommendations

Improving patient communication on fertility risk and cancer is vital for quality in oncofertility care

Violet Kieu · Catharyn Stern · Jessica Harris · Yasmin Jayasinghe · Natalie Bradford · Wanyuan Cui · Rebecca Deans · Tamara Hunter · Catherine Allingham · Stefan C Kane · Lei Shong Lau · Shanna Logan · Robert McLachlan · Kristen Neville · Michelle Peate · Marianne Phillips · Carla Saunders · Marianne Tome · Rita Upreti · Kate White · Antoinette Anazodo · Roger J Hart

Medical education

Reflection

Erratum

12 December 2022 Free

Erratum

Choi PYI, Merriman E, Bennett A, et al. Consensus guidelines for the management of adult immune thrombocytopenia in Australia and New Zealand. Med J Aust 2022; 216: 43‐52. https://doi.org/10.5694/mja2.51284 In this Consensus statement article, the affiliations for Chee Wee Tan should be: “Royal Adelaide Hospital, Adelaide, SA; SA Pathology, Adelaide, SA; Thrombosis and Haemostasis Society of Australia and New Zealand (THANZ), Melbourne, VIC”.

12 December 2022 Free

Erratum

Weise JC, Srasuebkul P, Trollor JN. Potentially preventable hospitalisations of people with intellectual disability in New South Wales. Med J Aust 2021; 215: 31‐36. https://doi.org/10.5694/mja2.51088 The authors have identified three minor errors in the code used to define potentially preventable hospitalisations for people with intellectual disability: For diabetes complications, the use of level 3 instead of level 4 ICD‐10 codes. For the non‐vaccine preventable pneumonia, a missing decimal point for the J15.7 code (J157 instead of J15.7). For gangrene, the use of a principal diagnosis code for the R02 instead of any diagnosis code. The authors have re‐run their analysis and found minor changes to the rates and trends of potentially preventable hospitalisation for people with intellectual disability: Including diabetes complications has changed the overall rates of chronic disease; chronic disease admission rates are now higher for people with intellectual disability. A small increase in the number admissions related to non‐vaccine‐preventable pneumonia. No difference in the result for gangrene‐related admission, as the numbers remain too low to include in our results. The new information, which does not change the overall findings and discussion, is reflected in the changes to the Abstract, the Results section, Boxes 1 to 3, and the Supporting Information described below. In the Abstract, the Results paragraph should read: Results: The annual age‐standardised rate for people with intellectual disability ranged between 5889 and 7203 per 100 000 persons, and for the NSW population between 1278 and 1511 per 100 000 persons; the rate ratio (RR) ranged between 3.9 (95% CI, 3.7–4.1) in 2014–15 and 5.0 (95% CI, 4.6–5.4) in 2002–03. The difference was greatest for admissions with acute conditions (RR range: 5.4 [95% CI, 5.0–5.8] in 2014–15 to 8.1 [95% CI, 7.4–8.8] in 2002–03). By specific condition, the highest age‐standardised rate was for admissions with convulsions and epilepsy (all years, 2567 per 100 000 population; v NSW population: RR, 22.2; 95% CI, 21.3–23.1). In the Results section, page 32, the first paragraph should read: Between 2001–02 and 2014–15, the age‐standardised rate of potentially preventable hospitalisations of people with intellectual disability ranged between 5889 and 7203 per 100 000 persons; the age‐standardised rate for the NSW population ranged between 1278 and 1511 per 100 000 persons. RRs ranged between 3.9 (95% CI, 3.7–4.1) in 2014–15 and 5.0 (95% CI, 4.6–5.4) in 2002–03 (Box 1, Box 2, A; Supporting Information, table 2). In the Results section, page 32, the second paragraph should read: RRs for potentially preventable hospitalisations for vaccine‐preventable conditions ranged between 2.1 (95% CI, 1.6–3.0) in 2007–08 and 3.4 (95% CI, 2.2–5.2) in 2004–05 (Box 1, Box 2, B; Supporting Information, table 2). For acute conditions, RRs ranged between 5.4 (95% CI, 5.0–5.8) in 2014–15 and 8.1 (95% CI, 7.4–8.8) in 2002–03 (Box 1, Box 2, C; Supporting Information, table 2). For chronic conditions, RRs ranged between 2.0 (for several years) and 2.5 (95% CI, 2.1–2.8) in 2004–05 (Box 1, Box 2, D; Supporting Information, table 2). In the Results section, pages 32 to 33, the final two paragraphs should read: In each age group, the difference in rates of potentially avoidable hospitalisations for people with intellectual disability and for the general NSW population was greatest for convulsions or epilepsy (all ages: RR, 22.2; 95% CI, 21.3–23.1). The second greatest differences were for bronchiectasis for people aged 0–14years (RR, 10.0; 95% CI, 4.1–24.7), 15–24years (RR, 14.5; 95% CI, 5.2–40.5), or 25–44years (RR, 11.7; 95% CI, 4.6–29.7), diabetes complications for people aged 45–64years (RR, 6.5; 95% CI, 5.4–7.8), and pelvic inflammatory disease for people aged 65years or more (RR, 9.0; 95% CI, 1.2–65) (Box 3; Supporting Information, table 3). In each age group, potentially avoidably hospitalisations of people with intellectual disability for asthma were less frequent than for the general NSW population (all ages: RR, 0.4; 95% CI, 0.4–0.4) (Box 3; Supporting Information, table 3). Box 1 – Rate ratios (with 95% confidence intervals) for potentially preventable hospitalisations (per 100000 persons) of New South Wales people with intellectual disability and of all New South Wales people, by year* Year All conditions Vaccine‐preventable conditions Chronic conditions Acute conditions 2001–02 4.9 (4.5–5.3) 3.2 (2.2–4.7) 2.1 (1.8–2.5) 7.7 (7.0–8.4) 2002–03 5.0 (4.6–5.4) 2.6 (1.7–3.8) 2.0 (1.7–2.3) 8.1 (7.4–8.8) 2003–04 4.9 (4.6–5.3) 2.8 (2.1–3.8) 2.4 (2.0–2.7) 7.5 (6.9–8.3) 2004–05 4.9 (4.6–5.3) 3.4 (2.2–5.2) 2.5 (2.1–2.8) 7.5 (6.9–8.2) 2005–06 4.9 (4.6–5.3) 2.7 (1.8–4.1) 2.4 (2.1–2.8) 7.5 (6.9–8.1) 2006–07 4.9 (4.6–5.3) 2.2 (1.5–3.4) 2.3 (2.0–2.6) 7.7 (7.1–8.4) 2007–08 4.4 (4.1–4.6) 2.1 (1.6–3.0) 2.0 (1.7–2.2) 6.8 (6.3–7.4) 2008–09 4.4 (4.2–4.7) 2.6 (1.8–3.9) 2.1 (1.9–2.4) 6.9 (6.3–7.4) 2009–10 4.3 (4.1–4.6) 2.4 (1.8–3.2) 2.3 (2.0–2.6) 6.6 (6.1–7.1) 2010–11 4.6 (4.4–5.0) 2.3 (1.6–3.1) 2.2 (1.9–2.5) 6.5 (6.0–7.1) 2011–12 4.6 (4.3–4.9) 2.7 (1.9–3.7) 2.2 (1.9–2.5) 6.4 (6.0–7.0) 2012–13 4.5 (4.2–4.8) 2.8 (2.1–3.7) 2.0 (1.8–2.3) 6.5 (6.0–7.0) 2013–14 4.2 (3.9–4.4) 2.9 (2.3–3.8) 2.3 (2.1–2.6) 5.8 (5.4–6.2) 2014–15 3.9 (3.7–4.1) 2.8 (2.2–3.5) 2.2 (2.0–2.5) 5.4 (5.0–5.8) * All age‐adjusted rates of potentially preventable hospitalisations by category and year are available in the online Supporting Information, table 2. Box 2 – Age‐adjusted rates of potentially preventable hospitalisations, New South Wales, 2001–02 to 2014–15 Box 3 – Rate ratios (with 95% confidence intervals) for potentially preventable hospitalisations (per 100000 persons) of New South Wales people with intellectual disability and of all New South Wales people, 2010–11 to 2014–15, by age and condition* Condition All ages 0–14years 15–24years 25–44years 45–64years 65years or more Vaccine‐preventable Pneumonia and influenza 2.9 (2.6–3.3) 4.8 (3.9–6.0) 3.9 (2.2–6.8) 4.2 (2.8–6.4) 3.3 (2.2–4.8) 1.4 (0.9–2.1) Other 2.6 (2.2–2.9) 2.1 (1.7–2.7) 1.7 (0.8–3.6) 2.7 (1.9–3.8) 2.7 (2.0–3.6) 2.7 (1.5–5.0) Chronic conditions† Asthma 0.4 (0.4–0.4) 0.1 (0.1–0.1) 0.3 (0.2–0.3) 0.3 (0.2–0.4) 0.4 (0.3–0.6) 0.2 (0.2–0.4) Bronchiectasis 2.6 (2.1–3.2) 10.0 (4.1–24.7) 14.5 (5.2–40.5) 11.7 (4.6–29.7) 1.9 (1.1–3.6) 1.2 (0.7–2.1) Diabetes complications 3.3 (3.1–3.5) 1.6 (1.3–2.0) 2.2 (1.8–2.8) 8.3 (6.6–10.4) 6.5 (5.4–7.8) 3.2 (2.6–4.1) Chronic obstructive pulmonary disease 2.2 (2.1–2.4) 3.0 (1.2–7.5) 5.1 (1.3–20.9) 5.3 (3.0–9.2) 2.9 (2.4–3.4) 2.0 (1.8–2.3) Iron deficiency anaemia 1.8 (1.6–1.9) 3.3 (1.8–6.1) 1.3 (0.9–1.9) 1.9 (1.5–2.4) 1.8 (1.5–2.2) 1.2 (1.0–1.5) Rheumatic heart diseases 1.2 (0.8–1.6) 2.1 (0.7–6.6) 1.7 (0.3–9.8) 1.6 (0.4–6.6) 0.8 (0.3–1.9) 0 Acute conditions‡ Convulsions and epilepsy 22.2 (21.3–23.1) 14.8 (13.7–16.0) 22.6 (19.4–26.3) 25.7 (22.2–29.7) 25.4 (21.6–29.9) 11.9 (8.8–16.3) Dental conditions 5.6 (5.4–5.9) 3.1 (2.9–3.3) 7.2 (6.3–8.4) 11.1 (9.7–12.8) 6.4 (5.4–7.5) 2.3 (1.6–3.2) Ear, nose, throat infections 2.8 (2.7–2.9) 2.5 (2.3–2.7) 1.5 (1.3–1.9) 2.4 (1.9–3.1) 3.6 (2.5–5.3) 2.2 (1.3–3.7) Pelvic inflammatory disease 0.8 (0.7–0.9) 1.2 (0.1–10.7) 0.6 (0.4–1.0) 0.8 (0.5–1.1) 0.2 (0.1–0.4) 9.0 (1.2–64.7) Perforated/bleeding ulcer 1.8 (1.5–2.3) 2.7 (0.1–58.8) 1.6 (0.5–5.4) 1.6 (0.8–3.2) 2.7 (1.6–4.5) 1.4 (0.9–2.4) Pneumonia (not vaccine‐preventable) 2.7 (2.1–3.4) 2.0 (1.4–2.9) 2.8 (0.9–8.4) 4.9 (1.7–14.6) 3.5 (1.1–11.1) 2.1 (0.6–7.5) Urinary tract infections 3.4 (3.2–3.6) 2.4 (2.1–2.7) 2.2 (1.8–2.6) 4.1 (3.4–5.0) 5.3 (4.5–6.4) 2.6 (2.3–3.0) * All age‐adjusted rates of potentially preventable hospitalisations by category and year are available in the online Supporting Information, table 3. † Data for nutritional deficiencies not included because of small case numbers. ‡ Data for eclampsia and gangrene not included because of small case numbers. The category "Convulsions and epilepsy" is included under acute conditions in the National Healthcare Agreement list of potentially preventable hospitalisations.12

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