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Groesel, M.; Zsoldos, R.R.; Kotschwar, A.; Gfoehler, M.; Peham, C. |
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Title  |
A preliminary model study of the equine back including activity of longissimus dorsi muscle |
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Journal Article |
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Year |
2010 |
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Equine Veterinary Journal |
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42 |
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401-406 |
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horse; back movement; biomechanical model; longissimus dorsi; lateral bending |
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Reasons for performing study: Identifying the underlying problem of equine back pain and diseases of the spine are significant problems in veterinary orthopaedics. A study to validate a preliminary biomechanical model of the equine back based on CT images including longissimus dorsi (LD) muscle is therefore important. Objectives: Validation of the back model by comparing the shortening of LD muscles in the model with integrated EMG (IEMG) at stance during induced lateral flexion of the spine. Methods:Longissimus dorsi muscle activity at stance has been used for validation. EMG electrodes were placed laterally at the level of T12, T16 and L3. Reflective markers have been attached on top of the spinous processes T5, T12, T16, L1 and the sacral bone (OS1, OS2) for motion tracking analysis. A virtual model of the equine's back (T1–S5) was built with inclusion of a simplified LD muscle by 2 separate contours left and right of the spine, starting at tuber coxae laterally and attaching to the spinous process T5 medially. Shortening of LD during induced lateral flexion caused by the kinematic data (input) was compared to the 3 EMG signals (T12, T16 and L3) on the active side via correlation. Results: Pearson correlation coefficient between IEMG and shortening length of LD in the model was (mean ± s.d.) 0.95 ± 0.07 for the left side and 0.91 ± 0.07 for the right side of LD. Conclusions: Activity of the LD muscles is mainly responsible for stabilisation of the vertebral column with isometric muscle contraction against dynamic forces in walk and trot. This validation requires muscle shortening in the back, like induced lateral flexion at stance. The length of the shortening muscle model and the IEMG show a linear relationship. These findings will help to model the LD for forward simulations, e.g. from force to motion. |
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Blackwell Publishing Ltd |
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2042-3306 |
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Equine Behaviour @ team @ |
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5675 |
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Houpt, K.; Marrow, M.; Seeliger, M. |
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A preliminary study of the effect of music on equine behavior |
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2000 |
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Journal of Equine Veterinary Science |
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20 |
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11 |
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691-737 |
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refbase @ user @ |
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1988 |
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Houpt, K.; Marrow, M.; Seeliger, M. |
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Title |
A preliminary study of the effect of music on equine behavior |
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2000 |
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Journal of Equine Veterinary Science |
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20 |
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11 |
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691-737 |
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0737-0806 |
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Equine Behaviour @ team @ |
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6633 |
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Selby, A.; Smith-Osborne, A. |
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A Systematic Review of Effectiveness of Complementary and Adjunct Therapies and Interventions Involving Equines |
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2012 |
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Health psychology : official journal of the Division of Health Psychology, American Psychological Association |
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32 |
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Objective: This systematic review examines the empirical literature in an emerging body of evidence for the effectiveness of biopsychosocial interventions involving equines across populations with chronic illness or health challenges. Method: Selected quantitative studies published in peer-reviewed journals were reviewed for inclusion; the gray literature and white papers were also explored. Population, Intervention, Comparison, and Outcome (PICO) criteria and Grades of Recommendation, Assessment, Development, and Evaluation (GRADE) were applied to all studies. Fourteen full reports meeting a priori inclusion criteria were extracted from 103 studies accessed through 16 electronic databases and a hand search. Data were synthesized in relation to three research questions informing evidence-based practice. Results: No randomized clinical trials were located. Two studies provided a moderate level of evidence for effectiveness. Nine studies demonstrated statistically significant positive effects. Three studies did not find significant psychosocial effects for the target group, although one found significant positive effects for the comparison group. Conclusion: In the aggregate, the evidence is promising in support of the effectiveness of complementary and adjunct interventions employing equines in the treatment of health challenges. Future studies are needed that utilize rigorous and creative designs, especially longitudinal studies and comparisons with established effective treatments. |
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Equine Behaviour @ team @ |
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6186 |
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Sinclair, M.; Buhrmann, G.; Gummow, B. |
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An epidemiological investigation of the African horsesickness outbreak in the Western Cape Province of South Africa in 2004 and its relevance to the current equine export protocol |
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Journal Article |
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2006 |
Publication |
Journal of the South African Veterinary Association |
Abbreviated Journal |
J S Afr Vet Assoc |
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77 |
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4 |
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191-196 |
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African Horse Sickness/diagnosis/*epidemiology; African horse sickness virus/*isolation & purification; Animals; Ceratopogonidae/virology; Diagnosis, Differential; Disease Outbreaks/*veterinary; Female; Horses; Insect Vectors/virology; Male; Prevalence; Retrospective Studies; Sentinel Surveillance; South Africa/epidemiology; Viral Vaccines/administration & dosage |
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African Horsesickness (AHS) is a controlled disease in South Africa. The country is divided into an infected area and a control area. An outbreak of AHS in the control area can result in a ban of exports for at least 2 years. A retrospective epidemiological study was carried out on data collected during the 2004 AHS outbreak in the surveillance zone of the AHS control area in the Western Cape Province. The objective of this study was to describe the 2004 outbreak and compare it with the 1999 AHS outbreak in the same area. As part of the investigation, a questionnaire survey was conducted in the 30 km radius surrounding the index case. Spatial, temporal and population patterns for the outbreak are described. The investigation found that the outbreak occurred before any significant rainfall and that the main AHS vector (Culicoides imicola) was present in abundance during the outbreak. Furthermore, 63% of cases occurred at temperatures < or = 15 degrees C, the Eerste River Valley was a high risk area, only 17% of owners used vector protection as a control measure and 70% of horses in the outbreak area were protected by means of vaccination at the start of the outbreak. The study revealed that the current AHS control measures do not function optimally because of the high percentage of vaccinated horses in the surveillance zone, which results in insufficient sentinel animals and the consequent failure of the early warning system. Alternative options for control that allow continued export are discussed in the paper. |
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State Veterinarian Epidemiology, Elsenburg, South Africa. marnas@elsenburg.com |
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English |
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1019-9128 |
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PMID:17458343 |
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Equine Behaviour @ team @ |
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2354 |
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Author |
von Borstel, U. |
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An overview of educational offerings in equine science and -management in Canada |
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Conference Article |
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2008 |
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IESM 2008 |
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Equine science studies, BSc degree, diploma, certificate, University of Guelph |
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Canada has a variety of educational offerings in equine management at the diploma and certificate level offered by universities and colleges, as well as by industry supported centres. However, it was not until 2007 that the first degree-based program in equine science was launched. Offered by the University of Guelph, the Bachelor of Bio- Resource Management – Equine Management program is designed for students who do not intend to pursue post-graduate studies and are strongly focused on securing employment that makes use of the knowledge acquired in their bachelor's degree. The courses in the BSc-program include basic natural sciences as well as equine-specific courses with a focus on management of equine related businesses and events. Diploma and certificate programs usually include only specifically equine-related courses e.g. in anatomy and physiology, health, business, facility management and nutrition. All diploma and certificate programs, and to a slightly lesser extent the BSc program, have a strong focus on applied learning with the intent to provide highly trained workers for the industry. Unique in Canada are the entirely online-taught Diploma in Equine Studies, the Certificate in Equine Business Management and the Equine Science Certificate offered by Equine Guelph and the University of Guelph"s continuing education. Students of these programs have access to a virtual classroom via the internet, and therefore access to instructors and guest speakers from the industry throughout the course. The Canadian certificate programs typically take one year (two semesters), the diploma programs two years (four semesters), while the BSc program takes four years (eight semesters). The BSc program requires approximately 2000 hours of in-class time plus roughly twice the amount spent on assignments and studying, totalling to an overall workload of roughly 6000 hours. Most programs require the completion of Grade 12 or equivalent for admission, and in all programs a background and experience with horses is not required for admission, however it is usually deemed beneficial. Career options for BSc-graduates include barn management, riding instructor or coach, professional rider, judge, steward, course designer, equine-assisted therapy, veterinary assistant, event manager, nutrition consultant, retail sales in tack and equipment, equine sales and marketing, agriculture extension services, college lecturer, consultant and technical advisor, and media relations. Career options for the diploma and certificate program graduates generally include similar areas, with a focus on hands-on work and direct interaction with horses such as employment as grooms, trainers and barn managers. |
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Department of Animal and Poultry Science, University of Guelph, Kemptville Campus, Kemptville ON, K0G1J0, Canada |
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von Borstel, U. |
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IESM 2008 |
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Talk 15 min IESM 2008 |
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yes |
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Equine Behaviour @ team @ |
Serial |
4472 |
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Author |
von Borstel, U.; Gauly, M. |
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An overview of the MSc-program in equine science at the University of Göttingen |
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2008 |
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IESM 2008 |
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The MSc-program in Equine Science, initiated in 2006 in response to needs for scientific support of the growing equine sector, is the first of its kind in Germany. It is offered by the Faculty of Agriculture Science, Department of Animal Breeding and Genetics at the University of Göttingen, Germany, however courses are delivered in cooperation with the University of Veterinary Medicine Hannover and the German Equestrian Federation (FN). The courses are concerned with the scientific basis of horse breeding, husbandry, nutrition, physiology, behaviour, and health, as well as with aspects of business administration and management of equine facilities and their impact on society, economy and the environment. Courses are delivered in German and – in the case of some guest speakers – English language in form of lectures, laboratories, seminars, group-projects, internships and a combination thereof. Currently, the program is limited to 30 students per year and requirements for admittance are a BSc (or equivalent) degree in animal science or related subjects. However, graduates of programs e.g. in business administration, economics, or veterinary or law schools, are also accepted. The program takes two years (four semesters), and requires the completion of 120 European Credit Transfer System points, i.e. a workload of approximately 3000 hours. This timeframe includes the preparation of a thesis based upon research in topics related to equine science, demonstrating the candidate"s capacity for original and independent work. Further information about the program can be obtained from the official website: http://www.pferde.uni-goettingen.de . Career options for graduates include equine facilities management, consulting services, agriculture extension services, feed industry, agricultural ministry and related civil service, universities and research institutions. |
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Corresponding author: Uta.vonborstel@agr.uni-goettingen.de |
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Gauly, M. |
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IESM 2008 |
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Talk 15 min IESM 2008 |
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yes |
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Equine Behaviour @ team @ |
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4497 |
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Barrey, E.; Galloux, P. |
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Analysis of the equine jumping technique by accelerometry |
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1997 |
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Equine Veterinary Journal. Supplement |
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Equine Vet J Suppl |
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23 |
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45-49 |
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*Acceleration; Analysis of Variance; Animals; Forelimb/physiology; Hindlimb/physiology; Horses/*physiology; Locomotion/*physiology; Movement/physiology; Time Factors |
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The purpose of this study was to demonstrate the relationships between jumping technique and dorsoventral acceleration measured at the sternum. Eight saddle horses of various jumping abilities competed on a selective experimental show jumping course including 14 obstacles. An accelerometric belt fastened onto the thorax continuously measured the dorsoventral acceleration during the course. At each jump, 11 locomotor parameters (acceleration peaks, durations and stride frequency) were obtained from the dorsoventral acceleration-time curves. The type of obstacle significantly influenced the hindlimb acceleration peak at take-off and the landing acceleration peak (P<0.01). The poor jumpers exhibited a higher mean forelimb acceleration peak at take-off, a higher forelimb/hindlimb ratio between peaks of acceleration (F/H), and a lower approach stride frequency than good jumpers. Knocking over an obstacle was significantly associated with a low hindlimb acceleration peak at take-off and a high F/H ratio (P<0.01). In order to observe the continuous changes in the frequency domain of the dorsoventral acceleration during the approach and take-off phase, a Morlet's wavelet analysis was computed for each horse jumping over a series of 3 vertical obstacles. Different patterns of time-frequency images obtained by wavelet analysis were found when the horse either knocked over a vertical obstacle or cleared it. In the latter case, the image pattern showed an instantaneous increase in stride frequency at the end of the approach phase, and a marked energy content in the middle frequency range at take-off. |
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INRA Station de Genetique Quantitative et Appliquee, Groupe cheval, Jouy-en-Josas, France |
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PMID:9354288 |
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Equine Behaviour @ team @ |
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3796 |
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Author |
Brooks, S. M. |
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Animal-assisted psychotherapy and equine-fasciliated psychotherapy. |
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2006 |
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Psychotherapy and Equine Facilitated Psychotherapy, |
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196-217 |
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Guilford Press |
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New York |
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Webb, N.B. |
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Equine Behaviour @ team @ |
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5071 |
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Sudia, W.D.; Fernandez, L.; Newhouse, V.F.; Sanz, R.; Calisher, C.H. |
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Arbovirus vector ecology studies in Mexico during the 1972 Venezuelan equine encephalitis outbreak |
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Journal Article |
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1975 |
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American Journal of Epidemiology |
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Am J Epidemiol |
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101 |
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1 |
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51-58 |
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Animals; Arboviruses/isolation & purification; Culicidae/microbiology; Disease Vectors/*microbiology; Ecology; Encephalitis Virus, St. Louis/isolation & purification; Encephalitis Virus, Venezuelan Equine/*isolation & purification; Encephalitis Virus, Western Equine/isolation & purification; Encephalomyelitis, Equine/epidemiology/*transmission/veterinary; Horse Diseases/epidemiology/*transmission; Horses; Insect Vectors/microbiology; Mexico |
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Virus vector studies were conducted in the States of Durango, Chihuahua, and Tamaulipas, Mexico, in June and July 1972. Apparently only a low level of Venzuelan equine encephalitis (VEE) virus transmission to equines occured at the time of the study, and the infection was restricted to areas which had not experienced overt activity during the preceding year. The low level of infection was associated with a scarcity of mosquitoes. The IB (epidemic) strain of VEE virus was isolated from two pools of Anopheles pseudopunctipennis (Theo.) and the blood of one symptomatic equine. The low mosquito population, the relatively few equine cases observed, and the absence of reports of VEE human disease from the outbreak area suggested VEE virus persistence through a low-level mosquito-equine transmission cycle. Other studies have already indicated that wild vertebrates play no more than a minor role in outbreaks of epidemic VEE. Mosquito collections made in areas of the states of Durango, Chihuahua, and Tamaulipas, where considerable epidemic activity of VEE had occurred in 1971, failed to reveal evidence of VEE virus persistence. Twenty-nine ioslations of other arboviruses were also made in these studies: including 22 of St. Louis encephalitis virus (SLE), 2 of Flanders virus, 1 of Turlock virus, 1 of Trivittatus virus of the California Group, 1 of western equine encephalitis virus (VEE), and 2 (from Santa Rose) which possibly represent a hitherto unknown virus in the Bunyamwera Group. These are the first reports of SLE virus isolations from mosquitoes in Mexico, and the first demonstration of Trivittatus, VEE Turlock and Flanders viruses in Mexico from any source. |
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0002-9262 |
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PMID:235213 |
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Equine Behaviour @ team @ |
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2706 |
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