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1.
Proc Natl Acad Sci U S A ; 118(5)2021 02 02.
Artigo em Inglês | MEDLINE | ID: mdl-33468627

RESUMO

Rabies kills ∼60,000 people per year. Annual vaccination of at least 70% of dogs has been shown to eliminate rabies in both human and canine populations. However, delivery of large-scale mass dog vaccination campaigns remains a challenge in many rabies-endemic countries. In sub-Saharan Africa, where the vast majority of dogs are owned, mass vaccination campaigns have typically depended on a combination of static point (SP) and door-to-door (D2D) approaches since SP-only campaigns often fail to achieve 70% vaccination coverage. However, D2D approaches are expensive, labor-intensive, and logistically challenging, raising the need to develop approaches that increase attendance at SPs. Here, we report a real-time, data-driven approach to improve efficiency of an urban dog vaccination campaign. Historically, we vaccinated ∼35,000 dogs in Blantyre city, Malawi, every year over a 20-d period each year using combined fixed SP (FSP) and D2D approaches. To enhance cost effectiveness, we used our historical vaccination dataset to define the barriers to FSP attendance. Guided by these insights, we redesigned our vaccination campaign by increasing the number of FSPs and eliminating the expensive and labor-intensive D2D component. Combined with roaming SPs, whose locations were defined through the real-time analysis of vaccination coverage data, this approach resulted in the vaccination of near-identical numbers of dogs in only 11 d. This approach has the potential to act as a template for successful and sustainable future urban SP-only dog vaccination campaigns.


Assuntos
Atenção à Saúde , Cães/imunologia , Saúde Pública , Vacinação/veterinária , Animais , Inquéritos Epidemiológicos , Programas de Imunização , Malaui , Análise de Regressão
2.
BMC Infect Dis ; 23(1): 238, 2023 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-37072726

RESUMO

BACKGROUND: After completion of TB treatment patients may remain at risk of co-morbidity and mortality. We determined the survival and predictors of all-cause mortality after completing TB treatment among ART-experienced patients. METHODS: This was a retrospective cohort analysis of all ART experienced patients who completed TB treatment at a specialist HIV clinic in Uganda, between 2009 and 2014. The patients were followed for five years after TB treatment. We determined the cumulative probability of death, and predictors of mortality using Kaplan-Meier methods and Cox proportional hazard models, respectively. RESULTS: A total 1,287 patients completed TB treatment between 2009 and 2014, of which 1,111 were included in the analysis. At TB treatment completion, the median age was 36 years (IQR: 31-42), 563 (50.7%) were males, and median CD4 cell count was 235 cells/mL (IQR: 139-366). The person-time at risk was 4410.60 person-years. The all-cause mortality rate was 15.42 (95% CI: 12.14-19.59) per 1000 person-years. The probability of death at five years was 6.9% (95%CI: 5.5- 8.8). In the multivariable analysis, CD4 count < 200 cells/mL was a predictor of all-cause mortality (aHR = 1.81, 95%CI:1.06-3.11, p = 0.03) alongside history of retreatment (aHR = 2.12, 95%CI: 1.16-3.85, p = 0.01). CONCLUSION: Survival post TB treatment in ART experienced PLHIV is reasonably good. Most deaths occur within two years after TB treatment completion. Patients with a low CD4 count and those with a history of retreatment have an increased risk of mortality which underscores the need for TB prophylaxis, detailed assessment, and close monitoring after completion of TB treatment.


Assuntos
Infecções por HIV , Tuberculose , Masculino , Humanos , Adulto , Feminino , Tuberculose/tratamento farmacológico , Estudos Retrospectivos , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Estudos de Coortes , Modelos de Riscos Proporcionais
3.
Mol Ecol ; 31(18): 4607-4621, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-34888965

RESUMO

Vitamin D has a well-established role in skeletal health and is increasingly linked to chronic disease and mortality in humans and companion animals. Despite the clear significance of vitamin D for health and obvious implications for fitness under natural conditions, no longitudinal study has tested whether the circulating concentration of vitamin D is under natural selection in the wild. Here, we show that concentrations of dietary-derived vitamin D2 and endogenously produced vitamin D3  metabolites are heritable and largely polygenic in a wild population of Soay sheep (Ovis aries). Vitamin D2  status was positively associated with female adult survival, and vitamin D3  status predicted female fecundity in particular, good environment years when sheep density and competition for resources was low. Our study provides evidence that vitamin D status has the potential to respond to selection, and also provides new insights into how vitamin D metabolism is associated with fitness in the wild.


Assuntos
Ergocalciferóis , Vitamina D , Adulto , Animais , Colecalciferol , Feminino , Humanos , Ovinos
4.
BMC Vet Res ; 18(1): 246, 2022 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-35751072

RESUMO

BACKGROUND: The COVID-19 pandemic is likely to have affected the welfare and health of dogs due to surges in adoptions and purchases, changes in the physical and mental health and financial status of dog owners, changes in dogs' lifestyle and routines and limited access to veterinary care. The aims of this study were to investigate whether COVID-19 restrictions were associated with differences in Labrador retrievers' lifestyle, routine care, insurance status, illness incidence or veterinary attendance with an illness, who were living in England and enrolled in Dogslife, an owner-based cohort study. Longitudinal questionnaire data from Dogslife that was relevant to the dates between the 23rd of March and the 4th of July 2020, during COVID-19 restrictions in England, were compared to data between the same dates in previous years from 2011 to 2019 using mixed regression models and adjusted chi-squared tests. RESULTS: Compared with previous years (March 23rd to July 4th, 2010 to 2019), the COVID-19 restrictions study period (March 23rd to July 4th 2020) was associated with owners reporting increases in their dogs' exercise and worming and decreases in insurance, titbit-feeding and vaccination. Odds of owners reporting that their dogs had an episode of coughing (0.20, 95% CI: 0.04-0.92) and that they took their dogs to a veterinarian with an episode of any illness (0.58, 95% CI: 0.45-0.76) were lower during the COVID-19 restrictions compared to before. During the restrictions period, owners were less likely to report that they took their dogs to a veterinarian with certain other illnesses, compared to before this period. CONCLUSIONS: Dogslife provided a unique opportunity to study prospective questionnaire data from owners already enrolled on a longitudinal cohort study. This approach minimised bias associated with recalling events prior to the pandemic and allowed a wider population of dogs to be studied than is available from primary care data. Distinctive insights into owners' decision making about their dogs' healthcare were offered. There are clear implications of the COVID-19 pandemic and associated restrictions for the lifestyle, care and health of dogs.


Assuntos
COVID-19 , Doenças do Cão , Condicionamento Físico Animal , Animais , COVID-19/epidemiologia , COVID-19/veterinária , Estudos de Coortes , Doenças do Cão/epidemiologia , Cães , Inglaterra/epidemiologia , Humanos , Estudos Longitudinais , Pandemias , Estudos Prospectivos
5.
Vet Radiol Ultrasound ; 63(2): 224-233, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34904326

RESUMO

Postoperative radiation therapy (RT) may be beneficial for dogs with anal sac apocrine gland adenocarcinoma (ASAC). Clinically significant late toxicities have been reported in up to 65% of dogs with perianal tumors following non-conformal definitive RT, particularly when fractions of 3 Gy or higher are prescribed. The primary objective of this prospective, descriptive study was to evaluate tolerability of a novel 3D conformal RT (3DCRT) protocol in a group of dogs. Dogs with ASAC were prospectively enrolled if clients elected RT following surgery. The planning target volume was prescribed 50 Gy in 2.5 Gy fractions using 6 MV photons and administered over 26 days. Early and late radiation toxicities were graded according to standardized criteria. Thirteen dogs were initially enrolled but 1 was excluded due to a high risk of anesthesia-related mortality. Seven dogs presented with early stage disease. Median follow up time was 771 days (91-2223). Transient grade 3 dermatitis and anusitis developed in all dogs, with resolution within 4 weeks. Two dogs developed transient grade 2 late colitis. Locoregional failure in the irradiated field was documented in one dog at 738 days. All-cause median survival time was 771 days (95% confidence interval: 510 â†’ 2223 days). Findings indicated that this fractionation may be safely administered to the canine anus and pelvic canal using 3DCRT, although acute toxicity should be anticipated. Further prospective studies are needed in order to confirm long-term tolerability and efficacy.


Assuntos
Adenocarcinoma , Sacos Anais , Doenças do Cão , Lesões por Radiação , Radioterapia Conformacional , Adenocarcinoma/radioterapia , Adenocarcinoma/veterinária , Animais , Glândulas Apócrinas , Doenças do Cão/radioterapia , Cães , Lesões por Radiação/veterinária , Dosagem Radioterapêutica/veterinária , Radioterapia Conformacional/efeitos adversos , Radioterapia Conformacional/métodos , Radioterapia Conformacional/veterinária
6.
J Vet Med Educ ; : e20210098, 2022 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-35588307

RESUMO

The ability to teach is recognized as a core skill for many professionals, including veterinarians, but undergraduate opportunities to develop this skill are not always available. A complementary teaching certificate offered during the clinical years of an undergraduate veterinary program was evaluated to investigate student experiences of the program and the perceived benefits and challenges of participating. The study used a mixed methods approach with questionnaires to provide an overview of the participant experience and semi-structured interviews to gain a deeper insight into students' experiences of the program. Two cohorts completed questionnaires comprising Likert-style and open-ended questions on the 3-year teaching certificate, the first cohort after 1 year of the program and the second cohort at completion. Interviews with participants from both cohorts were thematically analyzed to identify recurring themes. An average of 27% of students per academic year enrolled in the certificate program, most of whom completed it. Additionally, four to six students per cohort applied for Associate Fellow of the Higher Education Academy (AFHEA), and 19 students have achieved this recognition. Key themes from the data included that students felt the certificate built their confidence, increased their veterinary knowledge, and helped them become better teachers, with time management and reflection the biggest challenges. The Undergraduate Certificate of Veterinary Medical Education was seen as a good teaching foundation, while working toward the AFHEA provided some insight into higher education and academic careers. A structured teaching program offers students the opportunity to develop their learning and reflection both as students and future educators.

7.
Appl Environ Microbiol ; 87(10)2021 04 27.
Artigo em Inglês | MEDLINE | ID: mdl-33712425

RESUMO

Cattle are a reservoir for Shiga toxin-producing Escherichia coli (STEC), zoonotic pathogens that cause serious clinical disease. Scotland has a higher incidence of STEC infection in the human population than the European average. The aim of this study was to investigate the prevalence and epidemiology of non-O157 serogroups O26, O103, O111, and O145 and Shiga toxin gene carriage in Scottish cattle. Fecal samples (n = 2783) were collected from 110 herds in 2014 and 2015 and screened by real-time PCR. Herd-level prevalence (95% confidence interval [CI]) for O103, O26, and O145 was estimated as 0.71 (0.62, 0.79), 0.43 (0.34, 0.52), and 0.23 (0.16, 0.32), respectively. Only two herds were positive for O111. Shiga toxin prevalence was high in both herds and pats, particularly for stx2 (herd level: 0.99; 95% CI: 0.94, 1.0). O26 bacterial strains were isolated from 36 herds on culture. Fifteen herds yielded O26 stx-positive isolates that additionally harbored the intimin gene; six of these herds shed highly pathogenic stx2-positive strains. Multiple serogroups were detected in herds and pats, with only 25 herds negative for all serogroups. Despite overlap in detection, regional and seasonal effects were observed. Higher herd prevalence for O26, O103, and stx1 occurred in the South West, and this region was significant for stx2 at the pat level (P = 0.015). Significant seasonal variation was observed for O145 prevalence, with the highest prevalence in autumn (P = 0.032). Negative herds were associated with Central Scotland and winter. Herds positive for all serogroups were associated with autumn and larger herd size and were not housed at sampling.IMPORTANCE Cattle are reservoirs for Shiga toxin-producing Escherichia coli (STEC), bacteria shed in animal feces. Humans are infected through consumption of contaminated food or water and by direct contact, resulting in serious disease and kidney failure in the most vulnerable. The contribution of non-O157 serogroups to STEC illness was underestimated for many years due to the lack of specific tests. Recently, non-O157 human cases have increased, with O26 STEC of particular note. It is therefore vital to investigate the level and composition of non-O157 in the cattle reservoir and to compare them historically and by the clinical situation. In this study, we found cattle prevalence high for toxin, as well as for O103 and O26 serogroups. Pathogenic O26 STEC were isolated from 14% of study herds, with toxin subtypes similar to those seen in Scottish clinical cases. This study highlights the current risk to public health from non-O157 STEC in Scottish cattle.


Assuntos
Doenças dos Bovinos , Infecções por Escherichia coli , Genes Bacterianos , Toxina Shiga/genética , Animais , Bovinos , Doenças dos Bovinos/epidemiologia , Doenças dos Bovinos/microbiologia , Escherichia coli/genética , Infecções por Escherichia coli/epidemiologia , Infecções por Escherichia coli/microbiologia , Infecções por Escherichia coli/veterinária , Fezes/microbiologia , Prevalência , Escócia/epidemiologia , Sorogrupo
8.
BMC Infect Dis ; 19(1): 977, 2019 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-31747889

RESUMO

BACKGROUND: Rabies is estimated to cause 59,000 deaths and economic losses of US$8.6 billion every year. Despite several years of rabies surveillance and awareness programmes, increased availability of post-exposure prophylaxis vaccinations and dog population control, the disease still remains prevalent in Sri Lanka. This study reports the roll-out of a high number, high coverage canine rabies vaccination campaign in Sri Lanka, providing estimates for the vaccination coverage achieved, analysing the local dog demographics, and identifying barriers of attendance to static vaccination clinics. METHODS: A mass dog vaccination campaign was undertaken in Negombo, Sri Lanka. The campaign was composed of static point and door-to-door vaccination stages, with a final survey of vaccination coverage. A large volume of data on the distribution, health, and signalment of vaccinated dogs was collected through a mobile phone application. A logistic regression model was developed to investigate which socio-spatial and dog-related factors influenced attendance of owners to static vaccination points. RESULTS: The campaign vaccinated over 7800 dogs achieving a vaccination coverage of 75.8%. A dog:human ratio of 1:17 was estimated. Most dogs were owned, and the dog population was mostly male, adult, and non-sterilized. Unawareness, unavailability and handling problems were the most common reasons given by owners to explain failure to attend a static vaccination point. The regression analysis showed that increasing distance to a static point, in addition to young age and poor health of the dog, were associated with a decrease in the likelihood of attendance to a static vaccination points. CONCLUSION: This study demonstrates the feasibility of high number, high coverage vaccination campaigns in Sri Lanka. The information on dog ecology and barriers of attendance to static point vaccination clinics will facilitate development of future vaccination campaigns.


Assuntos
Doenças do Cão/prevenção & controle , Vacina Antirrábica/imunologia , Raiva/prevenção & controle , Cobertura Vacinal/métodos , Animais , Telefone Celular , Doenças do Cão/imunologia , Cães , Feminino , Humanos , Programas de Imunização , Modelos Logísticos , Masculino , Raiva/imunologia , Sri Lanka , Inquéritos e Questionários , Cobertura Vacinal/estatística & dados numéricos
9.
BMC Vet Res ; 14(1): 214, 2018 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-29970084

RESUMO

BACKGROUND: In sub-Saharan Africa, livestock transhumance represents a key adaptation strategy to environmental variability. In this context, seasonal livestock transhumance also plays an important role in driving the dynamics of multiple livestock infectious diseases. In Cameroon, cattle transhumance is a common practice during the dry season across all the main livestock production zones. Currently, the little recorded information of the migratory routes, grazing locations and nomadic herding practices adopted by pastoralists, limits our understanding of pastoral cattle movements in the country. GPS-tracking technology in combination with a questionnaire based-survey were used to study a limited pool of 10 cattle herds from the Adamawa Region of Cameroon during their seasonal migration, between October 2014 and May 2015. The data were used to analyse the trajectories and movement patterns, and to characterize the key animal health aspects related to this seasonal migration in Cameroon. RESULTS: Several administrative Regions of the country were visited by the transhumant herds over more than 6 months. Herds travelled between 53 and 170 km to their transhumance grazing areas adopting different strategies, some travelling directly to their destination areas while others having multiple resting periods and grazing areas. Despite their limitations, these are among the first detailed data available on transhumance in Cameroon. These reports highlight key livestock health issues and the potential for multiple types of interactions between transhumant herds and other domestic and wild animals, as well as with the formal livestock trading system. CONCLUSION: Overall, these findings provide useful insights into transhumance patterns and into the related animal health implications recorded in Cameroon. This knowledge could better inform evidence-based approaches for designing infectious diseases surveillance and control measures and help driving further studies to improve the understanding of risks associated with livestock movements in the region.


Assuntos
Criação de Animais Domésticos/métodos , Bovinos , Migração Animal , Animais , Camarões , Doenças dos Bovinos/etiologia , Doenças dos Bovinos/prevenção & controle , Sistemas de Informação Geográfica , Estações do Ano
10.
Am J Primatol ; 80(2)2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29457637

RESUMO

Previous studies of nonhuman primates have found relationships between health and individual differences in personality, behavior, and social status. However, despite knowing these factors are intercorrelated, many studies focus only on a single measure, for example, rank. Consequently, it is difficult to determine the degree to which these individual differences are independently associated with health. The present study sought to untangle the associations between health and these individual differences in rhesus macaques (Macaca mulatta). We studied 85 socially housed macaques at the Oregon and California National Primate Research Centers, and used veterinary records to determine the number of injuries and illnesses for each macaque. We measured personality using 12 items from a well-established primate personality questionnaire, performed focal observations of behaviors, and calculated dominance status from directional supplant data. All twelve personality questionnaire items were reliable and were used to represent five of the six personality dimensions identified in rhesus macaques-Dominance, Confidence, Openness, Anxiety, and Friendliness (also known as Sociability). Following this, we fit generalized linear mixed effects models to understand how these factors were associated with an animal's history of injury and history of illness. In the models, age was an offset, facility was a random effect, and the five personality dimensions, behavior, sex, and dominance status were fixed effects. Number of injuries and illnesses were each best represented by a negative binomial distribution. For the injury models, including the effects did improve model fit. This model revealed that more confident and more anxious macaques experienced fewer injuries. For the illness models, including the fixed effects did not significantly improve model fit over a model without the fixed effects. Future studies may seek to assess mechanisms underlying these associations.


Assuntos
Nível de Saúde , Macaca mulatta/lesões , Macaca mulatta/psicologia , Personalidade , Predomínio Social , Animais , Feminino , Masculino , Comportamento Social
11.
Vet Radiol Ultrasound ; 59(2): 198-202, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29271127

RESUMO

Real-time elastography is a recently introduced ultrasound technique allowing the investigation of elastic properties of tissues. A diagnostic accuracy study was conducted to test the performance of this technique in the assessment of subcutaneous lesions in dogs. Fifty-two dogs were prospectively included in the preliminary study (34 malignant and 18 benign lesions). B-mode ultrasound was performed assessing the shape, margins, heterogeneity, and echotexture of the lesions. On elastosonography, assessment of the percentage of softness/hardness was recorded. A qualitative assessment was performed according to the Tsukuba elasticity score with a 1-5 score, representing the increased percentage of high stiffness areas. Results were compared with cytology/histopathology of the lesions. Receiver Operating Curves of the overall diagnostic sensitivity and specificity were obtained. Fisher's exact test and Pearsons's Chi-squared test estimated the relationship between the B-mode appearance of the lesions and final diagnosis. A hardness cutoff of 50.25% was identified between lesions, with malignant neoplasms having higher percentages. A 100% specificity and 89% sensitivity for correctly detecting the nature of the lesion on elastosonography was established. Qualitative assessment of the Tsukuba elasticity score established 1.5 as the cutoff between elastograms of lipomatous and malignant lesions, with 100% sensitivity and 61% specificity in differentiating them. Real-time elastosonography is a novel, noninvasive, and accurate technique for differentiating malignant from benign lipomatous lesions in dogs. This method could be considered as a complementary tool with additional diagnostic value for routine invasive procedures, such as fine needle aspirates.


Assuntos
Doenças do Cão/diagnóstico por imagem , Técnicas de Imagem por Elasticidade/veterinária , Lipoma/diagnóstico por imagem , Neoplasias de Tecidos Moles/diagnóstico por imagem , Tela Subcutânea/diagnóstico por imagem , Animais , Diagnóstico Diferencial , Cães , Técnicas de Imagem por Elasticidade/métodos , Feminino , Masculino , Sensibilidade e Especificidade
12.
Vet Radiol Ultrasound ; 59(6): 677-686, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30192038

RESUMO

Multiphasic multidetector computed tomographic angiography is a standard diagnostic test for canine abdominal vascular disorders. Three imaging protocols have been previously described. The test-bolus protocol allows precise timing but can be time consuming to perform. Bolus-tracking software is fast and easy to use but can be problematic for exact timing of vascular phases. A recently described fixed-injection-duration protocol is not influenced by body weight and provides a wider temporal window for arterial acquisitions. Objectives of this retrospective and prospective, multicentric, method comparison study were to determine which of the three multidetector computed tomographic angiography protocols allows best vascular conspicuity of the canine abdomen and to assess the influence of different multidetector computed tomography (CT) scanners on study quality. Triple-phase multidetector computed tomographic angiography canine abdominal studies from 30 dogs were retrospectively retrieved from three different institutions. Each institution performed one of the three computed tomographic angiography protocols (4-row and 16-row multidetector CT). Prospectively, the three protocols were also acquired with similar conditions on a 64-row MDCT in 21 dogs. Main abdominal vessels were scored by blinded readers for each phase. The fixed-injection-duration protocol had the best combined arterial and portal vascular conspicuity on scanners of limited speed, while the test-bolus protocol provided the best overall vascular conspicuity on 64-row multidetector CT scanner. The quality of arterial studies performed on 64-row MDCT scanner was improved compared to the ones performed on four- to 16-row multidetector CT scanners. Findings supported the fixed-injection-duration protocol as the best compromise between an ideal portal vascular enhancement and an easily reproducible protocol on scanners with low and high number of detector rows.


Assuntos
Abdome/diagnóstico por imagem , Angiografia por Tomografia Computadorizada/veterinária , Tomografia Computadorizada Multidetectores/veterinária , Animais , Angiografia por Tomografia Computadorizada/métodos , Cães , Feminino , Injeções/veterinária , Masculino , Tomografia Computadorizada Multidetectores/métodos , Estudos Prospectivos , Estudos Retrospectivos
13.
Vet Radiol Ultrasound ; 59(5): 535-544, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30043546

RESUMO

The aim of this retrospective, methods comparison study was to assess the diagnostic utility of computed tomographic arthrography in the assessment of various intraarticular shoulder pathologies in dogs in comparison with survey computed tomography (CT), using arthroscopic examination as the reference standard. Computed tomography, computed tomographic arthrography, and arthroscopic findings of 46 scapulohumeral joints of dogs with forelimb lameness were reviewed retrospectively. Predefined sites were assessed for the presence or absence of disease. If a lesion was present, a prespecified pathology was designated. Computed tomographic arthrography was found to be a safe technique which provided a superior diagnostic efficacy relative to survey CT for the assessment of the biceps tendon and biceps tendon sheath (sensitivity 71%, specificity 75%, positive likelihood ratio 2.9, negative likelihood ratio 0.38) and humeral head cartilage (sensitivity 65%, specificity 97%, positive likelihood ratio 19, negative likelihood ratio 0.37). Computed tomography and computed tomographic arthrography provided additional diagnostic information to arthroscopy in regard to osteophytosis, subchondral defects, and joint mice. Computed tomographic arthrography alone was of limited diagnostic value for assessment of the medial and lateral glenohumeral ligaments (sensitivity 13% and 0%, specificity 1% and 78%, positive likelihood ratios unmeasurable and 0, negative likelihood ratios 0.88 and 1.29, respectively) and the subscapularis tendon (sensitivity 14%, specificity 98%, positive likelihood ratio 5.7, negative likelihood ratio 0.88). Computed tomographic arthrography is therefore a useful adjunct to survey CT and arthroscopic evaluation of the canine shoulder joint, however, is not a replacement for these techniques.


Assuntos
Artrografia/veterinária , Artroscopia/veterinária , Ligamentos Articulares/diagnóstico por imagem , Articulação do Ombro/diagnóstico por imagem , Ombro/diagnóstico por imagem , Tendões/diagnóstico por imagem , Tomografia Computadorizada por Raios X/veterinária , Animais , Artrografia/métodos , Artroscopia/métodos , Cães , Feminino , Masculino , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/métodos
14.
Vet Radiol Ultrasound ; 58(4): 381-388, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28335088

RESUMO

Idiopathic pulmonary fibrosis is an interstitial lung disease of unknown etiology resulting in progressive interstitial fibrosis, with a known predilection in West Highland white terriers. In humans, computed tomography (CT) is a standard method for providing diagnostic and prognostic information, and plays a major role in the idiopathic pulmonary fibrosis staging process. Objectives of this retrospective, analytical, cross-sectional study were to establish descriptive criteria for reporting CT findings and test correlations among CT, clinical findings and survival time in West Highland white terriers with idiopathic pulmonary fibrosis. Inclusion criteria for affected West Highland white terriers were a diagnosis of idiopathic pulmonary fibrosis and available CT, bronchoscopy, bronchoalveolar lavage, echocardiography, and routine blood analysis findings. Clinically normal West Highland white terriers were recruited for the control group. Survival times were recorded for affected dogs. The main CT lung pattern and clinical data were blindly and separately graded as mild, moderate, or severe. Twenty-one West Highland white terriers with idiopathic pulmonary fibrosis and 11 control West Highland white terriers were included. The severity of pulmonary CT findings was positively correlated with severity of clinical signs (ρ = 0.48, P = 0.029) and negatively associated with survival time after diagnosis (ρ = -0.56, P = 0.025). Affected dogs had higher lung attenuation (median: -563 Hounsfield Units (HU)) than control dogs (median: -761 HU), (P < 0.001). The most common CT characteristics were ground-glass pattern (16/21) considered as a mild degree of severity, and focal reticular and mosaic ground-glass patterns (10/21) considered as a moderate degree of severity. Findings supported the use of thoracic CT as a method for characterizing idiopathic pulmonary fibrosis in West Highland white terriers and providing prognostic information for owners.


Assuntos
Doenças do Cão/diagnóstico por imagem , Fibrose Pulmonar Idiopática/veterinária , Animais , Estudos Transversais , Doenças do Cão/diagnóstico , Cães , Feminino , Fibrose Pulmonar Idiopática/diagnóstico , Fibrose Pulmonar Idiopática/diagnóstico por imagem , Masculino , Prognóstico , Valores de Referência , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/veterinária
15.
J Vet Med Educ ; 44(1): 134-140, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28206831

RESUMO

This study set out to improve our understanding of potential pedagogical factors that may influence the mental health of veterinary students. Previous research has demonstrated that the type of feedback given to children by parents and teachers can strongly influence young people's beliefs in their ability to modify their intelligence-their "mindset." There is also evidence that we can change the mindset of students relating to their intelligence by changing the methods by which we teach and assess. We used a paper-based questionnaire to assess mindset and psychological well-being in veterinary students (n=148). We found an association linking students' mindset to their intelligence and their psychological well-being. Students who believed that their level of intelligence was fixed had significantly lower scores on five out of six areas of psychological well-being compared to students who believed that their intelligence was malleable. Giving process rather than person feedback and reducing assessment methods that encourage comparison with other students could increase the proportion of our students with a growth mindset and, if the association we identified is causal, improve their psychological well-being.


Assuntos
Logro , Inteligência , Saúde Mental , Estudantes de Medicina/psicologia , Adolescente , Educação em Veterinária , Humanos , Saúde Mental/estatística & dados numéricos , Escócia , Adulto Jovem
16.
Parasitology ; 143(8): 1055-66, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27174468

RESUMO

Cyathostomins are ubiquitous nematodes of horses. Once ingested, they can spend a substantial time as encysted larvae in the intestinal wall. The larvae can comprise up to 90% of the total burden, with up to several million worms reported in individuals. These stages can emerge in large numbers to cause life-threatening colitis. Direct methods for detection of encysted larval burdens in live horses do not exist. Previously, two antigen complexes were identified as promising markers for infection. A component of these, cyathostomin gut associated larval antigen-1 (Cy-GALA-1), was identified following immunoscreening of a complementary DNA library. Serum immunoglobulin G(T) (IgG(T)) responses to Cy-GALA-1 were shown to inform on larval infection. Sequence analysis of polymerase chain reaction products amplified from individual worms indicated that Cy-GALA-1 was derived from Cyathostomum pateratum. As cyathostomin infections always comprise multiple species, a diagnostic test must account for this. Here, segments of the Cy-gala gene were isolated from four common species, Cyathostomum catinatum, Cylicocyclus ashworthi, Cylicostephanus goldi and Cylicostephanus longibursatus, and the associated proteins expressed in recombinant form. The specificity and immunogenicity of each protein was confirmed. Each protein was assessed by enzyme linked immuno sorbent assay (ELISA) for its ability for informing on the presence of encysted larval infection and the level of burden.


Assuntos
Antígenos de Helmintos/imunologia , Ensaio de Imunoadsorção Enzimática/veterinária , Proteínas de Helminto/imunologia , Doenças dos Cavalos/diagnóstico , Infecções Equinas por Strongyloidea/diagnóstico , Strongyloidea/imunologia , Sequência de Aminoácidos , Animais , Especificidade de Anticorpos , Antígenos de Helmintos/genética , DNA Complementar/genética , DNA de Helmintos/genética , Ensaio de Imunoadsorção Enzimática/métodos , Proteínas de Helminto/genética , Doenças dos Cavalos/parasitologia , Cavalos , Larva , Proteínas Recombinantes , Alinhamento de Sequência , Infecções Equinas por Strongyloidea/parasitologia , Strongyloidea/isolamento & purificação
17.
Med Teach ; 38(2): 208-10, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26473772

RESUMO

A key responsibility of healthcare professionals is the education of clients/patients, colleagues and students undertaking placements. Peer-assisted learning (PAL) has been incorporated in our veterinary medicine programme for a number of years. The aim of this project was to develop a mechanism to formally recognise the important role that students play in the School's teaching and learning processes and foster students as partners in education through the development of a novel Undergraduate Certificate in Veterinary Medical Education (UCVME). Students and veterinarians were surveyed in order to inform the design of the programme. The programme is modular and aligned with the UK Professional Standards Framework (UKPSF). Students enrol in their third year, undertaking core and elective components, with completion over the final three years of the degree. The UCVME has been positively received, with 30 of 160 third year students enrolling in the programme's first year. Activities receiving credit and designed in partnership between staff and students have included: PAL sessions, widening participation school educational workshops and client education events. This initiative has created numerous student-driven educational opportunities. It is hoped that this programme will facilitate the educational training of students and enhance employability and career satisfaction.


Assuntos
Educação em Veterinária , Docentes de Medicina , Estudantes de Medicina , Certificação , Educação de Graduação em Medicina , Humanos , Reino Unido
18.
BMC Infect Dis ; 15: 589, 2015 Dec 29.
Artigo em Inglês | MEDLINE | ID: mdl-26715371

RESUMO

BACKGROUND: Over 20,000 people die from rabies each year in India. At least 95 % of people contract rabies from an infected dog. Annual vaccination of over 70 % of the dog population has eliminated both canine and human rabies in many countries. Despite having the highest burden of rabies in the world, there have been very few studies which have reported the successful, large scale vaccination of dogs in India. Furthermore, many Indian canine rabies vaccination programmes have not achieved high vaccine coverage. METHODS: In this study, we utilised a catch-vaccinate-release approach in a canine rabies vaccination programme in 18 wards in Ranchi, India. Following vaccination, surveys of the number of marked, vaccinated and unmarked, unvaccinated dogs were undertaken. A bespoke smartphone 'Mission Rabies' application was developed to facilitate data entry and team management. This enabled GPS capture of the location of all vaccinated dogs and dogs sighted on post vaccination surveys. In areas where coverage was below 70 %, catching teams were re-deployed to vaccinate more dogs followed by repeat survey. RESULTS: During the initial vaccination cycle, 6593 dogs were vaccinated. Vaccination coverage was over 70 % in 14 of the 18 wards. A second cycle of vaccination was performed in the 4 wards where initial vaccination coverage was below 70 %. Following this second round of vaccination, coverage was reassessed and found to be over 70 % in two wards and only just below 70 % in the final two wards (66.7 % and 68.2 %, respectively). CONCLUSION: Our study demonstrated that mobile technology enabled efficient team management and rapid data entry and analysis. The vaccination approach outlined in this study has the potential to facilitate the rapid vaccination of large numbers of dogs at a high coverage in free roaming dog populations in India.


Assuntos
Doenças do Cão/prevenção & controle , Vacinação em Massa/estatística & dados numéricos , Vacina Antirrábica , Raiva/veterinária , Animais , Doenças do Cão/epidemiologia , Cães , Índia/epidemiologia , Raiva/epidemiologia , Raiva/prevenção & controle , Smartphone , Inquéritos e Questionários
19.
J Dairy Sci ; 98(12): 8610-22, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26454304

RESUMO

Adverse social and welfare implications of mixing dairy cows or separating calves from their mothers have been documented previously. Here we investigated the behavioral and physiological responses of individuals remaining after conspecifics were removed. We conducted a series of 4 experiments incorporating a range of types of different dairy cattle groupings [experiment 1 (E1), 126 outdoor lactating dairy cows; experiment 2 (E2), 120 housed lactating dairy cows; experiment 3 (E3), 18 housed dairy calves; and experiment 4 (E4), 22 housed dairy bulls] from which a subset of individuals were permanently removed (E1, n=7; E2, n=5; E3, n=9; E4, n=18). Associations between individuals were established using near-neighbor scores (based upon identities and distances between animals recorded before removal) in E1, E2, and E3. Behavioral recordings were taken for 3 to 5 d, before and after removal on a sample of cattle in all 4 experiments (E1, n=20; E2, n=20; E3, n=9; E4, n=4). In 2 experiments with relatively large groups of dairy cows, E1 and E2, the responses of cows that did and did not associate with the removed cows were compared. An increase in time that both nonassociates and associates spent eating was observed after conspecific removal in E1. In E2, this increase was restricted to cows that had not associated with the removed cows. A reduction in ruminating in remaining cattle was observed in E3 and eating in E4. Immunoglobulin A concentrations increased after separation in both E3 and E4 cattle, but did not differ significantly between associates and nonassociates in E2. Blood and milk cortisol concentrations were not affected by conspecific removal. These findings suggest that some animals had affected feeding behavior and IgA concentrations after removal of conspecifics.


Assuntos
Comportamento Animal , Bovinos/fisiologia , Comportamento Social , Animais , Ingestão de Alimentos , Feminino , Hidrocortisona/sangue , Imunoglobulina A/sangue , Lactação , Modelos Lineares , Masculino , Leite
20.
J Med Internet Res ; 17(4): e96, 2015 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-25887101

RESUMO

BACKGROUND: Internet-based data collection relies on well-designed and validated questionnaires. The theory behind designing and validating questionnaires is well described, but few practical examples of how to approach validation are available in the literature. OBJECTIVE: We aimed to validate data collected in an ongoing Internet-based longitudinal health study through direct visits to participants and recall of their health records. We demonstrate that despite extensive pre-planning, social desirability can still affect data in unexpected ways and that anticipation of poor quality data may be confounded by positive validation. METHODS: Dogslife is a large-scale, Web-based longitudinal study of canine health, in which owners of Labrador Retrievers were recruited and questioned at regular intervals about the lifestyle and health of their dogs using an Internet-based questionnaire. The Dogslife questionnaire predominantly consists of closed-answer questions. In our work, two separate validation methodologies were used: (1) direct interviews with 43 participants during visits to their households and (2) comparison of owner-entered health reports with 139 historical health records. RESULTS: Our results indicate that user-derived measures should not be regarded as a single category; instead, each measurement should be considered separately as each presents its own challenge to participants. We recommend trying to ascertain the extent of recall decay within a study and, if necessary, using this to guide data collection timepoints and analyses. Finally, we recommend that multiple methods of communication facilitate validation studies and aid cohort engagement. CONCLUSIONS: Our study highlighted how the theory underpinning online questionnaire design and validation translates into practical data issues when applied to Internet-based studies. Validation should be regarded as an extension of questionnaire design, and that validation work should commence as soon as sufficient data are available. We believe that validation is a crucial step and hope our suggested guidelines will help facilitate validation of other Internet-based cohort studies.


Assuntos
Coleta de Dados/normas , Cães , Internet , Animais , Bases de Dados Factuais , Feminino , Humanos , Estudos Longitudinais , Reprodutibilidade dos Testes , Projetos de Pesquisa , Inquéritos e Questionários/normas
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