J Amery-Gale, JCZ Woinarski, CA Hartley, JM Devlin
{"title":"High prevalence of antibodies against feline calicivirus in Australian feral and stray cat (Felis catus) populations","authors":"J Amery-Gale, JCZ Woinarski, CA Hartley, JM Devlin","doi":"10.1111/avj.13369","DOIUrl":"10.1111/avj.13369","url":null,"abstract":"<div>\u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>Feline calicivirus (FCV) commonly causes upper respiratory tract, oral and ocular infections in species of the family Felidae, with high prevalence amongst domestic cat (<i>Felis catus</i>) populations worldwide. Detection of FCV-specific antibodies in serum provides evidence of previous infection with FCV and an indication of whether a cat may be protected against clinical FCV disease. This study describes the most extensive sampling for anti-FCV antibodies in feral and stray cat populations in Australia, and examines variation in prevalence associated with cat age, sex and location.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Blood samples were opportunistically collected from 669 feral, stray or Indigenous community cats from the Northern Territory, South Australia, Victoria, south-east Tasmania and south-west New South Wales. The sera were harvested and tested for antibodies capable of neutralising the FCV vaccine strain F9 by serum-virus neutralisation assay.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Of the 669 cats tested, 69.7% had detectable FCV-F9-neutralising antibodies (titres ≥5). Maturity was significantly associated with higher seroprevalence and higher antibody titres, with adult cats being more than twice as likely to have detectable FCV-neutralising antibodies than subadults. Male cats had a higher seroprevalence and slightly higher antibody titres than females. Cats living in closer proximity to humans had significantly higher seroprevalences and higher FCV-neutralising antibody titres than feral cats from more remote regions of Australia.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Australian feral and stray cats have a high risk of natural exposure to and infection with FCV, with the prevalence and levels of pre-existing immunity to FCV being highest amongst adult cats living in highly modified urban, peri-urban and agricultural environments.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 11","pages":"550-563"},"PeriodicalIF":1.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/avj.13369","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142340215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M Stutsel, L Jordan, C Smith, WY Lee, N Symonds, RJW Bell, A Young
{"title":"Comparison of distal extremity magnetic resonance imaging findings in Australian racing Standardbreds and Thoroughbreds","authors":"M Stutsel, L Jordan, C Smith, WY Lee, N Symonds, RJW Bell, A Young","doi":"10.1111/avj.13372","DOIUrl":"10.1111/avj.13372","url":null,"abstract":"<div>\u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>Foot-related lameness is common in Standardbred and Thoroughbred racehorses. Magnetic resonance imaging (MRI) provides information on both the soft tissue and osseous structures of the distal extremity. The aim of this study was to determine whether abnormalities identified on distal limb MRI differed between these two racehorse populations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>The records of Standardbred and Thoroughbred racehorse distal extremity MRI examinations conducted at Camden Equine Centre and Ballarat Veterinary Practice between 2013 and 2023 were retrieved. Horses were included if pain causing lameness had been localised to the foot using perineural or intra-articular analgesia. MRI abnormalities of the structures within the distal extremity were recorded and comparisons made between the two groups.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>There was a significant difference in the rate of occurrence of certain MRI abnormalities between the Thoroughbred and Standardbred racehorse populations, including distal phalangeal fractures, proximal phalangeal short tau inversion recovery (STIR) hyperintensity (distal aspect), the presence and severity of ungular cartilage ossification, abnormalities of the navicular bone distal border synovial invaginations/vascular channels and navicular bone distal border fragments. The presence of distal extremity STIR hyperintensity and fractures was significantly higher in Standardbred compared to Thoroughbred racehorses when these findings were grouped and considered in combination.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>There were many similarities in the distal extremity MRI abnormalities identified in lame Australian Standardbred and Thoroughbred racehorses. However, distal phalangeal fractures, ungular cartilage ossification and distal extremity STIR hyperintensity were identified in significantly more in Standardbred than Thoroughbred racehorses.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 11","pages":"535-542"},"PeriodicalIF":1.3,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142340213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Computed tomographic features of segmental aplasia of the caudal vena cava, portocaval shunt and Situs ambiguous in two dogs","authors":"J Desbordes, T Brignon, H Gaillot","doi":"10.1111/avj.13373","DOIUrl":"10.1111/avj.13373","url":null,"abstract":"<p>A 3-year-old crossbreed dog (case 1) and a 3-month-old German Shorthaired Pointer (case 2) were presented for acute signs of encephalopathy. A portosystemic shunt (PSS) was suspected based on clinical context and laboratory exam results and was confirmed on computed tomography (CT) angiography in both cases. A left-sided azygos (case 1) and right-sided azygos (case 2) continuation of an interrupted caudal vena cava (CVC) and a situs ambiguous (SA) were also observed and considered as incidental findings. Both dogs underwent PSS surgical correction. Postsurgical follow-up imaging procedures suggested concomitant primary hypoplasia of the portal vein (PHPV) in both cases.</p>","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 11","pages":"564-569"},"PeriodicalIF":1.3,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142340214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Using EPIWATCH® open-source surveillance to describe the epidemiology of lumpy skin disease outbreaks in South and Southeast Asia (2022–2023)","authors":"D Hutchinson, B Li, S Lim, H Stone, CR MacIntyre","doi":"10.1111/avj.13362","DOIUrl":"10.1111/avj.13362","url":null,"abstract":"<p>Lumpy skin disease (LSD) poses a significant threat to animal welfare and leads to economic losses in affected countries. LSD outbreaks may also impact trade and regional relationships. South and Southeast Asia, with its dense livestock population and intricate trade networks, are susceptible to LSD outbreaks. Indonesia confirmed its first LSD cases in March 2022, leading to substantial livestock losses by August 2023. Australia, an important player in the global beef industry, faced trade disruptions due to LSD concerns raised by Indonesia and Malaysia, claims that were refuted by Australian authorities. The dispute highlights the need for good surveillance. EPIWATCH®, employing artificial intelligence, provides real-time outbreak signals, and spatial analysis can identify LSD hotspots, leading to timely interventions. This study uses data collected by the EPIWATCH® open-source disease surveillance system at the University of New South Wales in 2022 and 2023 and compares it for timeliness and completeness with data available on the World Animal Health Information System (WAHIS). We found more timely reports of LSD outbreaks in EPIWATCH® compared to WAHIS. In conclusion, open-source surveillance tools like EPIWATCH® can provide timely alerts of disease emergence, such as LSD outbreaks in South and Southeast Asia, which can supplement formal reporting systems.</p>","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 10","pages":"524-529"},"PeriodicalIF":1.3,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/avj.13362","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142071890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Suspected paraneoplastic syndrome of inappropriate antidiuretic hormone secretion associated with a gastric adenocarcinoma in a dog","authors":"A Thomas, J Finlay, C Sharp","doi":"10.1111/avj.13365","DOIUrl":"10.1111/avj.13365","url":null,"abstract":"<p>This report describes a suspected case of paraneoplastic syndrome of inappropriate antidiuretic hormone (SIADH) in a 5-year-old male entire Australian Kelpie associated with a gastric adenocarcinoma. The dog had a history of chronic vomiting and presented with hyponatraemia, hypokalaemia, hypochloraemia and increased urinary sodium. Computed tomography identified the presence of a gastric tumour and histopathology confirmed a pyloric gastric adenocarcinoma. Removal of the tumour via a Billroth I procedure resulted in rapid resolution of electrolyte derangements. The dog was still alive six months postoperatively with no recurrence of either SIADH or tumour at the time of publication.</p>","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 10","pages":"510-513"},"PeriodicalIF":1.3,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141999387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M McKimmie, HJ Morrow, MC Hawes, A Robins, M Lynch, K Bodley, F Ryan, K Cox-Witton, C Death, P Whiteley
{"title":"Collaborative wildlife disease outbreak investigation and response at Bells Swamp Victoria, February 2023","authors":"M McKimmie, HJ Morrow, MC Hawes, A Robins, M Lynch, K Bodley, F Ryan, K Cox-Witton, C Death, P Whiteley","doi":"10.1111/avj.13364","DOIUrl":"10.1111/avj.13364","url":null,"abstract":"<p>In February 2023, a report of morbidity and mortality in waterbirds triggered a collaborative regional wildlife disease outbreak investigation and response, led by Parks Victoria. Triage, rehabilitation and diagnosis of sick and dead birds were undertaken by Zoos Victoria (ZV), Agriculture Victoria, Vets for Compassion, Wildlife Victoria and Melbourne Veterinary School (MVS). The field response focused on collection of sick and dead birds for wildlife welfare, for diagnosis, and to reduce environmental contamination. Botulism was suspected, based on clinical signs and lack of significant gross pathology, and this diagnosis was confirmed by PCR testing. Low pathogenicity avian influenza (LPAI) viruses non H5 or H7 were detected in two birds and ruled out in all in others tested. These incidental, non-clinical LPAI detections are considered part of the natural wild bird virus community in Australia. A number of elements contributed to the collaborative effort. Regional individuals had the necessary connections for reporting, collecting and transporting birds. There was rapid determination by the Victorian Department of Energy, Environment and Climate Action (DEECA) that Parks Victoria, as the land managers, should lead the response. Zoos Victoria provided capacity and expertise in wildlife triage and rehabilitation, and Agriculture Victoria, ZV and MVS were responsible for veterinary management of the response and diagnosis. Field investigation and response were conducted by Parks Victoria, Agriculture Victoria, MVS and veterinary teams from Vets for Compassion and Wildlife Victoria. Wildlife Health Australia (WHA) provided guidance and information, approved National Significant Disease Investigation Program funding and captured the event in the national wildlife health information database. Communication and media were important for community understanding of the event.</p>","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 10","pages":"514-516"},"PeriodicalIF":1.3,"publicationDate":"2024-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/avj.13364","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141888325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to ‘What is the best treatment for hypotension in healthy dogs during anaesthesia maintained with isoflurane?’","authors":"","doi":"10.1111/avj.13359","DOIUrl":"10.1111/avj.13359","url":null,"abstract":"<p>Quinn, CT. What is the best treatment for hypotension in healthy dogs during anaesthesia maintained with isoflurane? <i>Aust Vet J</i> 2024;102:264–273. https://doi.org/10.1111/avj.13318</p><p>Terminological or typographical errors that affected the interpretation of the article have been amended throughout the above article. These corrections were due to copyediting mistakes that were not originally addressed during the preparation and publication of the original article. Corrections were made in the following sections.</p><p>Abstract: A typographical error regarding volatile anaesthetic agents has been amended.</p><p>Abbreviations: The term ‘urine output’ has been corrected.</p><p>Clinical scenario: Terminological or typographical errors that affected the interpretation of the text have been amended.</p><p>Critical appraisal of the evidence: Terminological or typographical errors that affected the interpretation of the text have been amended.</p><p>Table 2: The terminology ‘blood loss or prolonged water deprivation’ has been amended.</p><p>Table 4: Corrections have been made to amend numbers that should be represented as percentages.</p><p>Conflicts of interest and Sources of Funding: The correct name for ‘Charles Sturt University’ has been amended.</p><p>We apologize for the errors.</p>","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 9","pages":"425"},"PeriodicalIF":1.3,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/avj.13359","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141874021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EC Hobbs, P Loukopoulos, TP Stinear, JL Porter, JYH Lee, P Whiteley, LF Skerratt, KB Gibney, A Meredith
{"title":"Severe cases of Buruli ulcer (infection with Mycobacterium ulcerans) in common ringtail possums in Victoria adversely affect animal welfare","authors":"EC Hobbs, P Loukopoulos, TP Stinear, JL Porter, JYH Lee, P Whiteley, LF Skerratt, KB Gibney, A Meredith","doi":"10.1111/avj.13360","DOIUrl":"10.1111/avj.13360","url":null,"abstract":"<p>Buruli ulcer is a chronic ulcerative disease of the skin and subcutaneous tissues caused by infection with <i>Mycobacterium ulcerans</i>. Although Australian possums are known to be susceptible to Buruli ulcer, many aspects of the disease in possums, including welfare impacts, remain largely unreported. Severe clinical Buruli ulcer was identified in four common ringtail possums (<i>Pseudocheirus peregrinus</i>) from Melbourne, Victoria. All four possums were euthanased due to the presence of deep ulcerative lesions on paws, with extensive tissue necrosis that exposed bones and tendons in three cases. Histologically, there was severe ulcerative necrotising pyogranulomatous dermatitis, panniculitis and myositis, with intralesional acid-fast bacteria. <i>M. ulcerans</i> was detected by real-time PCR in all swabs, tissues and faeces collected from all four cases. Buruli ulcer may be an important and under-recognised cause of poor possum welfare in endemic areas. The physical impacts of the severe cutaneous lesions, especially those extending to underlying bones and joints, would have directly impaired the mobility of these possums, affecting navigation of their natural environments and expression of natural behaviours including foraging and socialising. Systemic distribution of <i>M. ulcerans</i> throughout all major internal organs, as observed here, may further impact the health and fitness of infected possums. Faecal shedding of <i>M. ulcerans</i> in all four cases supports the role of possums as zoonotic reservoirs. Further research is needed to investigate the epidemiology, pathogenesis and welfare impacts of Buruli ulcer in possums and to inform the design of interventions that may protect their health and welfare.</p>","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 10","pages":"517-523"},"PeriodicalIF":1.3,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/avj.13360","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141756836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ME Westman, E Hall, JM Norris, T Meili, R Hofmann-Lehmann, R Malik
{"title":"Antiviral therapy in cats progressively infected with feline leukaemia virus: lessons from a series of 18 consecutive cases from Australia","authors":"ME Westman, E Hall, JM Norris, T Meili, R Hofmann-Lehmann, R Malik","doi":"10.1111/avj.13363","DOIUrl":"10.1111/avj.13363","url":null,"abstract":"<div>\u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>It is doubtful that any of the treatments proposed for feline leukaemia virus (FeLV) infection are effective, despite the entity being described 60 years ago.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Eighteen pet cats with progressive FeLV infections were recruited in Australia. One or more antiviral drugs were trialled in 16 cats, while two FeLV-infected cats were not handleable and served as untreated controls. Six cats were administered RetroMAD1™ only (0.5 mg/kg orally twice daily), a commercially available recombinant chimeric protein with proposed antiretroviral activity. Three cats were administered the integrase inhibitor raltegravir only (10–15 mg/kg orally twice daily), a drug used as a component of highly effective antiretroviral therapy for human immunodeficiency virus (HIV-1) infection. Three cats were administered RetroMAD1™ and raltegravir concurrently, and four cats were administered raltegravir and the reverse transcriptase inhibitor zidovudine (AZT, 5 mg/kg orally twice daily) concurrently. FeLV RNA and p27 antigen loads were measured at two timepoints (T1-2 months and T3-5 months) during therapy and compared to baseline (pretreatment) levels, to assess the response to therapy using linear modelling. The median survival time (MST) of the cats from commencement of FeLV treatment to death was also determined and compared between treatments.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The MST for the 16 FeLV-positive cats which received antiviral therapy was 634 days, while the MST from FeLV diagnosis to death for the two untreated control cats was 780 days. In cats treated with RetroMAD1™, FeLV viral load decreased from T0 to T1-2 months (median viral load reduced from 1339 × 10<sup>6</sup> to 705 × 10<sup>6</sup> copies/mL plasma; P = 0.012), but MST was reduced compared to cats not given RetroMAD1™ (426 days vs 1006 days; P = 0.049). Cats treated with raltegravir and AZT had no significant changes in FeLV viral load over time, but p27 antigen load was decreased from T0 to T3-5 months in cats treated with raltegravir (median p27 antigen level reduced from 50.2% to 42.7%; P = 0.005). All other results were not significantly affected by the treatment provided.</p>\u0000 \u0000 <p>Importantly, statistically significant and substantial associations were found between age at FeLV diagnosis and survival time (P = 0.046, R<sup>2</sup> = 18.6) and between FeLV viral load at T0 and survival time (P = 0.004, R<sup>2</sup> = 44.4). Younger cats, and cats with higher levels of pretreatment FeLV RNA, had reduced survival times. Cats treated with RetroMAD1™ were typically younger (median age 2.","PeriodicalId":8661,"journal":{"name":"Australian Veterinary Journal","volume":"102 9","pages":"453-465"},"PeriodicalIF":1.3,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/avj.13363","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141747351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}