Publications by authors named "Kirkland P"

Clinical signs of respiratory disease are common in Lao goats. To identify the causative agents involved in this clinical syndrome, a matched case-control study was conducted across 70 smallholder goat holdings in Savannakhet province. Fifty paired nasal swab samples were collected from goats with respiratory signs (cases) and unaffected (control) goats from 27 goat holdings.

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The emergence of Japanese encephalitis virus (JEV) in eastern Australia in 2022 caused extensive reproductive disease in pigs and is a threat to public health. Groups of weaned piglets were experimentally infected with the Australian outbreak strain of JEV (genotype 4). All pigs challenged at 5 weeks of age were infected after an intradermal injection of 1 × 10 ( = 4) or 1 × 10 TCID/pig ( = 5).

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Article Synopsis
  • - The high pathogenicity avian influenza virus H5N1 outbreak highlights the serious threats posed by viral incursions to both wildlife and domestic animals.
  • - Recent findings in Australia identified two low pathogenicity avian influenza virus subtypes, H4 and H10, with different evolutionary patterns, emphasizing the complex nature of viral spread.
  • - Phylogenetic analysis shows H4 viruses from shorebirds are a new introduction from Asia, while H10 has evolved into a new lineage in various bird populations, illustrating the importance of understanding these dynamics for better disease management.
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In 2022, a genotype IV (GIV) strain of Japanese encephalitis virus (JEV) caused an unprecedented and widespread outbreak of disease in pigs and humans in Australia. As no veterinary vaccines against JEV are approved in Australia and all current approved human and veterinary vaccines are derived from genotype (G) III JEV strains, we used the recently described insect-specific Binjari virus (BinJV) chimeric flavivirus vaccine technology to produce a JEV GIV vaccine candidate. Herein we describe the production of a chimeric virus displaying the structural prM and E proteins of a JEV GIV isolate obtained from a stillborn piglet (JEV) in the genomic backbone of BinJV (BinJ/JEVprME).

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Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by inflammatory polyarthritis and extra-articular involvement. Extraarticular manifestations of RA can include involvement of the skin, eye, heart, lungs, and others. RA is associated with a broad spectrum of pleuropulmonary involvement, with interstitial lung disease (ILD) and pleural disease being the most common.

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Introduction: Dysphagia can lead to morbidity including weight loss and aspiration pneumonia. Effective triage of patients and streamlining of pathways to expedite diagnosis and treatment is therefore imperative.

Objectives: The goals of this research were to measure the referral to treatment time for dysphagia patients in a newly established pathway and compare with existing UK national and local referral to treatment times, and to evaluate patient feedback.

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Bellinger River virus (BRV) is a serpentovirus (nidovirus) that was likely responsible for the catastrophic mortality of the Australian freshwater turtle in February 2015. From November 2015 to November 2020, swabs were collected from turtles during repeated river surveys to estimate the prevalence of BRV RNA, identify risk factors associated with BRV infection, and refine sample collection. BRV RNA prevalence at first capture was significantly higher in (10.

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Article Synopsis
  • Hepatitis C virus (HCV) is a significant cause of serious liver diseases, such as chronic hepatitis and liver cirrhosis, as well as hepatocellular carcinoma.
  • Chronic HCV infection is also linked to various extrahepatic conditions that can result in serious health issues, including cryoglobulinemia, autoimmune diseases, and cardiovascular problems.
  • Understanding these extrahepatic manifestations is crucial for early diagnosis and effective anti-viral treatment, which can help reduce long-term complications related to chronic HCV infection.
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Orthobunyaviruses (order , family ) in the Simbu serogroup have been responsible for widespread epidemics of congenital disease in ruminants. Australia has a national program to monitor arboviruses of veterinary importance. While monitoring for Akabane virus, a novel orthobunyavirus was detected.

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Border disease virus (BDV) is a member of the pestivirus genus that primarily affects sheep, causing reproductive losses through abortion, still births and the birth of weak lambs. The key characteristic of this disease is the birth of persistently infected (PI) lambs which, after surviving transplacental infection, are born antibody negative, yet virus positive, and thus shed the virus for their entire life and are the primary source of spread within a flock. The cornerstones of BDV control are detection and elimination of PI animals, biosecurity measures to prevent re-infection, and surveillance programs.

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In 2016, bluetongue virus (BTV), serotype 16 (BTV-16), was detected in New South Wales (NSW) in sentinel cattle for the first time. Over the next 6 years, BTV-16 has been detected regularly and over an increasing area of the BTV zone in NSW. In April 2023, disease was reported in sheep on two farms on the Northern Tablelands of NSW.

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BLUETONGUE VIRUS SEROTYPE 16 DETECTION IN NSW: In coastal New South Wales (NSW), bluetongue virus (BTV) serotypes 1 and 21 are endemic and transmitted in most years without evidence of disease. However, serotype 16 (BTV-16) infection was detected for the first time in NSW in November 2016 in cattle undergoing testing for export. Retrospective testing of blood samples collected from sentinel cattle as part of the National Arbovirus Monitoring Program (NAMP) established that the first detected transmission of BTV-16 in NSW occurred in April 2016 in sentinel cattle on the NSW North Coast.

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  • The study investigates the effectiveness of repeated imaging for locating abnormal parathyroid glands in patients with primary hyperparathyroidism (PHPT) when initial scans fail.
  • The analysis included 45 patients from 2015-2020, revealing that many did not proceed to surgery even after repeat scans, with only 28% showing positive results.
  • The conclusion suggests a more efficient approach that limits repeated imaging to twice and prioritizes surgical evaluation for those unfit for conservative treatment.
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Background: Bovine respiratory disease (BRD) is one of the most common diseases in intensively managed cattle, often resulting in high morbidity and mortality. Although several pathogens have been isolated and extensively studied, the complete infectome of the respiratory complex consists of a more extensive range unrecognised species. Here, we used total RNA sequencing (i.

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Objective: To demonstrate that OsHV-1 microvariant was limited to the known infected areas in New South Wales at the time of the survey in 2011.

Design: A 2-stage survey to demonstrate probability of infection at 2% design prevalence within oyster growing regions and to detect at least one infected region (4% design prevalence) with 95% confidence.

Sample Population: Magallana gigas in nominated oyster growing regions in New South Wales, South Australia and Tasmania as approved by the Aquatic Consultative Committee on Emergency Animal Diseases and documented in a national surveillance plan.

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Vaccines play an important role in maintaining human and animal health worldwide. There is continued demand for effective and safe adjuvants capable of enhancing antigen-specific responses to a target pathogen. Rabbit hemorrhagic disease virus (RHDV) is a highly contagious calicivirus that often induces high mortality rates in rabbits.

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Background: Symptomatic cholelithiasis is a common surgical disease and accounts for half of the over one million cholecystectomies performed in the USA annually. Despite its prevalence, only one prior systematic review has examined the evidence around treatment strategies and it contained a narrow scope. The goal of this systematic review was to analyze the clinical effectiveness of treatment options for symptomatic cholelithiasis, including surgery, non-surgical therapies, and ED pain management strategies.

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  • In October 2021, the first contemporary detection of Hendra virus genotype 2 (HeV-g2) was made in a horse near Newcastle, Australia, marking an extension of known cases by about 95 km south.
  • The discovery stemmed from updated diagnostic methods and routine veterinary surveillance, leading to the euthanasia of the infected horse due to its serious condition.
  • A coordinated multi-agency response included monitoring potentially exposed individuals and biosecurity measures for at-risk animals, with no further cases reported, emphasizing the need for increased research on risk management and the dynamics of Hendra virus transmission.
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Background: Gallstones are a common problem in the United States with many patients suffering from symptomatic cholelithiasis (SC). Patients with SC may first present to the emergency department ED) and are often discharged for elective follow-up; however, it is unknown what system and patient factors are associated with increased risk for ED revisits. This study aimed to assess longitudinal ED utilization and cholecystectomy for patients with SC and identify patient, geographic, and hospital characteristics associated with ED revisits, specifically race/ethnicity and insurance status.

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Background: Timely receipt of surgery should be available for all patients. Few studies have examined differences in the treatment of symptomatic cholelithiasis (SC), a common surgical problem, based on race/ethnicity or insurance status. This study aimed to identify differences in repeat emergency department (ED) use and wait time to cholecystectomy for SC.

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Since the identification of Hendra virus (HeV) infections in horses in Australia in 1994, more than 80 outbreaks in horses have been reported, and four out of seven spillover infections in humans had a fatal outcome. With the availability of a subunit vaccine based on the HeV-Glycoprotein (HeV-G), there is a need to serologically ifferentiate the nfected from the accinated nimals (DIVA). We developed an indirect ELISA using HeV-G expressed in and HeV-Nucleoprotein (HeV-N) expressed in recombinant baculovirus-infected insect cells as antigens.

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Background: Multiple socioeconomic and clinical factors have been implicated in the health disparities that exist amongst vulnerable populations with colorectal cancer. Efforts have been directed toward addressing these factors to improve outcomes. We evaluate the impact of primary care physicians (PCP) on the surgical presentation and outcomes of colorectal cancer at a safety-net hospital.

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The use of rabbit hemorrhagic disease virus (RHDV) as a biocontrol agent to control feral rabbit populations in Australia, in combination with circulating endemic strains, provides a unique environment to observe the interactions between different lagoviruses competing for the same host. Following the arrival of RHDV2 (GI.2) in Australia, it became necessary to investigate the potential for immunological cross-protection between different variants, and the implications of this for biocontrol programs and vaccine development.

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In the last decade, real-time polymerase chain reaction (PCR) has been increasingly adopted for bluetongue diagnosis with both broadly reactive and serotype-specific assays widely used. The use of these assays and nucleic acid sequencing technologies have enhanced bluetongue virus detection, resulting in the identification of a number of new serotypes. As a result, 27 different serotypes are officially recognised, and at least three more are proposed.

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