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1.
Sci Rep ; 14(1): 1223, 2024 01 12.
Artigo em Inglês | MEDLINE | ID: mdl-38216613

RESUMO

Koala populations across the east coast of Australia are under threat of extinction with little known about the presence or distribution of a potential pathogen, phascolartid gammaherpesvirus 1 (PhaHV-1) across these threatened populations. Co-infections with PhaHV-1 and Chlamydia pecorum may be common and there is currently a limited understanding of the impact of these co-infections on koala health. To address these knowledge gaps, archived clinical and field-collected koala samples were examined by quantitative polymerase chain reaction to determine the distribution of PhaHV-1 in previously untested populations across New South Wales and Queensland. We detected PhaHV-1 in all regions surveyed with differences in detection rate between clinical samples from rescued koalas (26%) and field-collected samples from free-living koalas (8%). This may reflect increased viral shedding in koalas that have been admitted into care. We have corroborated previous work indicating greater detection of PhaHV-1 with increasing age in koalas and an association between PhaHV-1 and C. pecorum detection. Our work highlights the need for continued surveillance of PhaHV-1 in koala populations to inform management interventions, and targeted research to understand the pathogenesis of PhaHV-1 and determine the impact of infection and co-infection with C. pecorum.


Assuntos
Infecções por Chlamydia , Chlamydia , Coinfecção , Gammaherpesvirinae , Phascolarctidae , Animais , Infecções por Chlamydia/epidemiologia , Queensland , New South Wales , Coinfecção/veterinária , Gammaherpesvirinae/genética
2.
Sci Rep ; 13(1): 15087, 2023 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-37699951

RESUMO

Chlamydiosis is a significant disease affecting Eastern Australian koala (Phascolarctos cinereus) populations, impacting individual animal welfare and fecundity and therefore influencing population dynamics. The aim of this study was to investigate the effect of a synthetic peptide vaccine based on 4 components of the Chlamydia pecorum major outer membrane protein (MOMP), over an 18-month period in a koala population severely impacted by chlamydiosis. Wild koalas were recruited into a vaccination or a placebo treatment group on a random allocation, then followed through a period of 18 months, with recapture at 6 monthly intervals. Vaccination did not alter clinical disease expression or chlamydial shedding from the ocular or urogenital sites. Vaccination did not stimulate a significant plasma anti-MOMP IgG response, when compared to the placebo group. There was no significant effect of vaccination on IFN-γ and IL-17A mRNA expression of peripheral blood lymphocytes when stimulated with rMOMP. We have demonstrated that a synthetic peptide vaccination against chlamydiosis is not an effective management tool in a koala population with a high prevalence of C. pecorum infection and related disease. The lack of antigenic response found in this study suggests that further research utilising a larger, full-length antigen is an avenue worth investigation if we are to consider vaccination as a part of a management strategy in diseased koala populations.


Assuntos
Vacinas Anticâncer , Phascolarctidae , Psitacose , Animais , Austrália , Proteínas de Membrana , Peptídeos , Vacinas de Subunidades , Vacinas Sintéticas
3.
Int J Health Policy Manag ; 11(6): 851-854, 2022 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-34973056

RESUMO

While Australia's health system has reached universal health coverage (UHC), recent scholarship points to its strengths and identifies ways it could be more effective and equitable, especially for tackling non-communicable diseases (NCDs). Building on the Australian experience, we add to these perspectives and present pertinent lessons for the quest towards UHC, and for policy-makers globally with regard to NCDs. Potential lessons include: the need for (i) vigilance - UHC requires ongoing monitoring and evaluation of not only financial risk protection but non-financial barriers and impacts such as forgone care; (ii) investment and action now on structural determinants of NCDs and related inequalities to avoid potentially higher (fiscal, social and health) costs in the longer term; and (iii) the opportunity for policy-makers globally and nationally to revisit their ambitions for UHC to include population health policies/ programs beyond essential health services that are required for healthier, more equitable and thriving societies.


Assuntos
Equidade em Saúde , Doenças não Transmissíveis , Austrália , Humanos , Doenças não Transmissíveis/prevenção & controle , Atenção Primária à Saúde , Cobertura Universal do Seguro de Saúde
4.
Public Health Nutr ; 17(8): 1894-904, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23924617

RESUMO

OBJECTIVE: To assess current salt reduction policies in countries of the WHO European Region against the backdrop of varying levels of human development adjusted for income, education and health (longevity) inequalities. DESIGN: Population-based, cross-sectional study, with data gathered through systematic review of relevant databases and supplementary information provided by WHO Nutrition Counterparts. SETTING: Member States of the WHO European Region. SUBJECTS: Inequality-adjusted Human Development Index scores were analysed against assessed levels of development and implementation of national nutrition policies and initiatives targeting population-level salt reduction. RESULTS: Within the WHO European Region, Inequality-adjusted Human Development Index values among countries with no existing salt reduction initiatives (mean 0·643 (se 0·022)) were significantly lower than among those with either partially implemented/planned salt initiatives (mean 0·766 (se 0·017), P < 0·001) or fully implemented salt initiatives (mean 0·780 (se 0·021), P < 0·001). CONCLUSIONS: Where salt reduction strategies are implemented as an integral part of national policy, outcomes have been promising. However, low- and middle-income countries may face severe resource constraints that keep them from emulating more comprehensive strategies pursued in high-income countries. Care must be taken to ensure that gaps are not inadvertently widened by monitoring differential policy impacts of salt policies, particularly regarding trade flows.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Países em Desenvolvimento , Dieta , Renda , Política Nutricional , Cloreto de Sódio na Dieta/administração & dosagem , Doenças Cardiovasculares/etiologia , Europa (Continente) , Humanos , Cloreto de Sódio na Dieta/efeitos adversos , Organização Mundial da Saúde
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