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Survey of trichinosis in breeding and cull swine, using an enzyme-linked immunosorbent assay.
1990
Cowen P. | Li S. | McGinn T. III
Serum samples obtained from 40,927 swine at various locations in North Carolina between Aug 1, 1987 and July 31, 1988, were tested for antibodies to Trichinella spiralis, using an ELISA based on a larval T spiralis excretory-secretory antigen. In the ELISA, samples were considered to have positive results if the optical density (OD) reading was equal to or 5 times greater than the mean OD value of 4 negative-control sera from trichina-free swine. Of the 40,927 serum samples tested, 154 (0.38%) were positive by ELISA; the rate for breeding swine was 0.35% (105/30,162), and the rate for cull swine was 0.45% (49/10,765). Of the 49 seropositive samples from cull swine, 11 were from out of the state, 22 had no identification, and 16 were known to originate from North Carolina. Seropositivity had a bimodally seasonal distribution, with peaks in March and September. There was no difference between the mean age of seropositive and seronegative swine, but males were at greater risk for seropositivity than were females. Pigs from lots with < 100 sera tested were at increased risk for seropositivity, as were pigs from the central coastal region of North Carolina.
اظهر المزيد [+] اقل [-]Prevalence of antibodies to Aujeszky’s disease virus in wild boar in Poland, between 2011 and 2014: a retrospective study النص الكامل
2017
Lipowski, Andrzej | Szczotka-Bochniarz, Anna | Pejsak, Zygmunt
Prevalence of antibodies to Aujeszky’s disease virus in wild boar in Poland, between 2011 and 2014: a retrospective study النص الكامل
2017
Lipowski, Andrzej | Szczotka-Bochniarz, Anna | Pejsak, Zygmunt
Introduction: Aujeszky’s disease virus (ADV) infects a wide range of animals, including members of the Suidae family, i.e. domestic and wild pigs, as well as wild boar. Since wild boar are a potential ADV reservoir and a source of infection for domestic pigs, the aim of the study was to evaluate ADV antibody prevalence in the Polish wild boar population, during the years 2011 to 2014. Material and Methods: Wild boar blood samples were collected during three consecutive hunting seasons; i.e. 2011/2012, 2012/2013, and 2013/2014, and tested for ADV antibodies by ELISA. Results: ADV antibodies were detected in samples from all tested voivodships. The average seroprevalence reached 32.2%. Seroprevalence, over the examined hunting seasons, was 27.4% in 2011/2012, 32.4% in 2012/2013, and 35.5% in 2013/2014. The highest percentage of seroreagents was detected in four voivodships, situated along the western border of Poland, i.e. Zachodnio-Pomorskie (ZP), Lubuskie (LB), Dolnośląskie (DS), and Opolskie (OP). This area is positively correlated with the highest density of the wild boar population and the highest wild boar hunting bag. Conclusion: The results of this study confirm that the wild boar population may still pose a threat to domestic pigs, which is of special importance at the final stage of Aujeszky’s disease eradication programme in Poland.
اظهر المزيد [+] اقل [-]Prevalence of antibodies to Aujeszky’s disease virus in wild boar in Poland, between 2011 and 2014: a retrospective study النص الكامل
2017
Lipowski Andrzej | Szczotka-Bochniarz Anna | Pejsak Zygmunt
Introduction: Aujeszky’s disease virus (ADV) infects a wide range of animals, including members of the Suidae family, i.e. domestic and wild pigs, as well as wild boar. Since wild boar are a potential ADV reservoir and a source of infection for domestic pigs, the aim of the study was to evaluate ADV antibody prevalence in the Polish wild boar population, during the years 2011 to 2014.
اظهر المزيد [+] اقل [-]Current status and challenges in disease surveillance and epidemiological investigation systems for companion animals in South Korea النص الكامل
2024
Lee, B.J. | Min, K.D.
The surveillance and epidemiological investigation systems for companion animals in South Korea are significantly underdeveloped compared to those for humans and livestock. Recent outbreaks, such as idiopathic neuromuscular syndrome and highly pathogenic avian influenza among cats, have highlighted the need for reliable systems. This short review conducts situation analysis regarding disease surveillance and epidemiological investigation for companion animals in South Korea. The current challenges include an absence of administrative leadership, a lack of legal support, and unreliable medical data. The recommendations for future directions include clear leadership by the Animal and Plant Quarantine Agency, amending the Act on the Prevention of Contagious Animal Diseases to include companion animals, and enhancing the quality of medical data through standardized coding systems, such as Systematized Nomenclature of Medicine Clinical Terms. In addition, sentinel surveillance rather than universal systems should be established to provide adequate incentives for local practitioners to provide data and develop sustainable public–private networks. These recommendations could be important for developing a comprehensive and sustainable system for disease surveillance and epidemiological investigation in the companion animal field.
اظهر المزيد [+] اقل [-]Common pathogens diagnosed in pig samples from year 2014 to 2017 by Veterinary Research Institute النص الكامل
2018
Aisya Naama T. | Azizah D. | Masrin A. | Nurulaini R. | Roslina H. | Zurin Azlin M. J. | Chandrawathani, P. | Sohayati A. R. | Nurul Fatiha A. S. | Roseliza R.
A total of 23,322 specimens collected between 2014 and 2017, froma total of 2,592 cases, were received in Veterinary Research Institute, Ipoh (VRI) from various states in Malaysia and testedfor common bacterial, viral, and parasitic diseases in pigs. The highest occurrence of isolated bacteria from 771 samples whichtested positive were Salmonella (47.38%) and Escherichia coli (15.68%), followed by Staphylococcus (6.62%), Streptococcus (5.57%), Klebsiella pneumonia (4.88%), Pseudomona (3.38%), Acinetobacter (3.14%), Aeromonas (2.79%), Enterobacter (2.44%), one each of Bacillus and Pasteurella multocida (1.74%), Enterococcus (1.39%) and Corynebacterium (1.05%). 1.74% of each bacteria detected were Moxarella, Aspergillus, Burkholderia andChromobacterium. Positive samples tested by ELISA was Japanese encephalitis virus (JEV) (9.15%), Aujezsky disease virus (ADV)(5.37%), porcine cirvo-virus-2 (PCV2) (5.09%) and porcine reproductive and respiratory syndrome virus (PRRSV) (4.52%). Positive amples tested by the molecular test wasPCV2 (1.62%), PRRSV (1.32%) and classical swine fever virus (CSFV) (0.4%). Serology tests were conducted on 11,305 samplesand reported positive for Brucella suis (15.32%), Brucella abortus (0.62%), Brucella melitensis (0.85%), and melioidosis (0.05%). Parasitology analyses on 99 samples. revealed presence of 10.1% coccidia and 1% each of helminths and Sarcocystis. Within the 4-year period, there were no positive samples for porcine parvovirus (PPV), Nipah virus, swine influenza virus (SIV), and bacteria of Johne’s disease and leptospirosis. Continuous assessment is required to establish a comprehensive baseline data of swine diseases in Malaysia.
اظهر المزيد [+] اقل [-]An overview of highly pathogenic avian influenza (H5N1) outbreak cases in Kelantan, west Malaysia in year 2017 النص الكامل
2018
Wan Norulhuda W. A. W. | Tariq J.
Malaysia has experienced four waves of H5N1 outbreak but no humandeaths were recorded which is in 2004, 2006, 2007 and latest outbreak in 2017 at Kelantan. The objective of this paper is tocollect, analyse and summarise the data of HPAI cases from the outbreak from 1 March to 22 June 2017. A total of 1,634 cases, 8,544 samples were received at the Registration Unit and Virology Section, Regional Veterinary Laboratory in Kota Bharu (RVLKB) for diagnosis and surveillance of H5N1 during this period. The samples received were pooled organs and intestines from post-mortem (41 cases) and cloaca swabs in tryptose phosphate buffer from surveillance (1,593 cases), which were sent to RVL, Kota Bharu and Veterinary Research Institute, Ipoh, Perak (VRI). They were processed and diagnosed using quantitative real-time reverse transcriptase PCR (RT qPCR) technique to detect and subtyping of the virus. Total positive cases for H5N1 were 53 out of 1,634 with 18 diagnostic cases and 35 surveillance cases. All positive cases during outbreak were detected from 43 locations from six districts of Kota Bharu, Bachok, Pasir Puteh, Pasir Mas, Tumpat and Tanah Merah, with 19 locations in Kota Bharu which is thehighest affected by H5N1, seven locations in Bachok, four in Pasir Putih, six in PasirMas, six in Tumpat and one in Tanah Merah. Many factors could have led to the acute spread of the virus between the districts like chicken smuggling, legal and illegal poultry trade, migration of infected wild birds and others. Understanding the source of outbreak and how it spread is important to control, eradicate and prevent the spread of the disease as it is zoonotic and infects human.
اظهر المزيد [+] اقل [-]A case report on the 2017 highly pathogenic avian influenza (H5N1) outbreak in poultry in Kelantan النص الكامل
2018
Zubaidah, M. A. | Tariq J. | Nur Raihan M. A. | Abd Halim H.
Highly pathogenic avian influenza (HPAI) is caused by influenza virus A from the family Orthomyxoviridae. It is a severe, systemic disease with high mortality in avians. The mortality can be as high as 100% in a few days. On 28 February 2017, HPAI virus of H5N1 subtype was confirmed in village chickens at Kampung Pulau Tebu, Batu 5, Tunjong Kota Bharu, Kelantan. It wasthe second outbreak of HPAI in Kelantan after the first reported case at Tumpat Kelantan on 17 August 2004. Most of the dead poultry showed similar clinical signs of sudden death with high mortality, cyanosis and oedema of head, comb, wattle and snood as well as red discolouration of shanks and feet. Post-mortem was performed on dead poultry and there were generalised haemorrhages of all internal organs, congested mesenteric blood vessels andpinpoint haemorrhages on proventriculus. Histopathological examination revealed generalised pulmonary haemorrhages with moderate interstitial pneumonia, generalised hepatic haemorrhages and hepatitis with multifocal area of hepatic necrosis, generalised haemorrhagic myocarditis and generalised haemorrhagicnephritis. Confirmation test was performed using RT-PCR and viral isolation at Veterinary Research Institute, Ipoh. 36 foci wereaffected involving five districts (Kota Bharu, Tumpat, Bachok, Pasir Mas and Tanah Merah) causing depopulation of 56,953 poultryand 17,531 eggs. Surveillance and control measures were taken by Department of Veterinary Services to contain the disease from spreading to other areas.
اظهر المزيد [+] اقل [-]Descriptive analysis and spatial epidemiology of porcine reproductive and respiratory syndrome (PRRS) for swine sites participating in area regional control and elimination programs from 3 regions of Ontario النص الكامل
2015
Arruda, Andreia G. | Poljak, Zvonimir | Friendship, Robert | Carpenter, Jane | Hand, Karen
The objectives of this study were to describe demographics, basic biosecurity practices, ownership structure, and prevalence of porcine reproductive and respiratory syndrome (PRRS) in swine sites located in 3 regions in Ontario, and investigate the presence of spatial clustering and clusters of PRRS positive sites in the 3 regions. A total of 370 swine sites were enrolled in Area Regional Control and Elimination projects in Niagara, Watford, and Perth from 2010 to 2013. Demographics, biosecurity, and site ownership data were collected using a standardized questionnaire and site locations were obtained from an industry organization. Status was assigned on the basis of available diagnostic tests and/or assessment by site veterinarians. Spatial dependence was investigated using the D-function, the spatial scan statistic test and the spatial relative risk method. Results showed that the use of strict all-in all-out (AIAO) pig flow and shower before entry are uncommon biosecurity practices in swine sites, but a larger proportion of sites reported having a Danish entry. The prevalence of PRRS in the 3 regions ranged from 17% to 48% and localized high and low risk clusters were detected. Sites enrolled in the PRRS control projects were characterized by membership in multiple and overlapping ownership structures and networks, which complicates the way the results of monitoring and disease management measures are communicated to the target population.
اظهر المزيد [+] اقل [-]Mobile technologies for disease surveillance in humans and animals النص الكامل
2014
Mpoki Mwabukusi | Esron D. Karimuribo | Mark M. Rweyemamu | Eric Beda
Mobile technologies for disease surveillance in humans and animals النص الكامل
2014
Mpoki Mwabukusi | Esron D. Karimuribo | Mark M. Rweyemamu | Eric Beda
A paper-based disease reporting system has been associated with a number of challenges. These include difficulties to submit hard copies of the disease surveillance forms because of poor road infrastructure, weather conditions or challenging terrain, particularly in the developing countries. The system demands re-entry of the data at data processing and analysis points, thus making it prone to introduction of errors during this process. All these challenges contribute to delayed acquisition, processing and response to disease events occurring in remote hard to reach areas. Our study piloted the use of mobile phones in order to transmit near to real-time data from remote districts in Tanzania (Ngorongoro and Ngara), Burundi (Muyinga) and Zambia (Kazungula and Sesheke). Two technologies namely, digital and short messaging services were used to capture and transmit disease event data in the animal and human health sectors in the study areas based on a server–client model. Smart phones running the Android operating system (minimum required version: Android 1.6), and which supported open source application, Epicollect, as well as the Open Data Kit application, were used in the study. These phones allowed collection of geo-tagged data, with the opportunity of including static and moving images related to disease events. The project supported routine disease surveillance systems in the ministries responsible for animal and human health in Burundi, Tanzania and Zambia, as well as data collection for researchers at the Sokoine University of Agriculture, Tanzania. During the project implementation period between 2011 and 2013, a total number of 1651 diseases event-related forms were submitted, which allowed reporters to include GPS coordinates and photographs related to the events captured. It was concluded that the new technology-based surveillance system is useful in providing near to real-time data, with potential for enhancing timely response in rural remote areas of Africa. We recommended adoption of the proven technologies to improve disease surveillance, particularly in the developing countries.
اظهر المزيد [+] اقل [-]Mobile technologies for disease surveillance in humans and animals النص الكامل
2014
Mwabukusi, Mpoki(Southern African Centre for Infectious Disease Surveillance) | Karimuribo, Esron D.(Sokoine University of Agriculture Department of Veterinary Medicine and Public Health) | Rweyemamu, Mark M.(Southern African Centre for Infectious Disease Surveillance) | Beda, Eric(Southern African Centre for Infectious Disease Surveillance)
A paper-based disease reporting system has been associated with a number of challenges. These include difficulties to submit hard copies of the disease surveillance forms because of poor road infrastructure, weather conditions or challenging terrain, particularly in the developing countries. The system demands re-entry of the data at data processing and analysis points, thus making it prone to introduction of errors during this process. All these challenges contribute to delayed acquisition, processing and response to disease events occurring in remote hard to reach areas. Our study piloted the use of mobile phones in order to transmit near to real-time data from remote districts in Tanzania (Ngorongoro and Ngara), Burundi (Muyinga) and Zambia (Kazungula and Sesheke). Two technologies namely, digital and short messaging services were used to capture and transmit disease event data in the animal and human health sectors in the study areas based on a server-client model. Smart phones running the Android operating system (minimum required version: Android 1.6), and which supported open source application, Epicollect, as well as the Open Data Kit application, were used in the study. These phones allowed collection of geo-tagged data, with the opportunity of including static and moving images related to disease events. The project supported routine disease surveillance systems in the ministries responsible for animal and human health in Burundi, Tanzania and Zambia, as well as data collection for researchers at the Sokoine University of Agriculture, Tanzania. During the project implementation period between 2011 and 2013, a total number of 1651 diseases event-related forms were submitted, which allowed reporters to include GPS coordinates and photographs related to the events captured. It was concluded that the new technology-based surveillance system is useful in providing near to real-time data, with potential for enhancing timely response in rural remote areas of Africa. We recommended adoption of the proven technologies to improve disease surveillance, particularly in the developing countries.
اظهر المزيد [+] اقل [-]Electronic Integrated Disease Surveillance System and Pathogen Asset Control System النص الكامل
2012
Tom G. Wahl | Aleksey V. Burdakov | Andrey O. Oukharov | Azamat K. Zhilokov
Electronic Integrated Disease Surveillance System and Pathogen Asset Control System النص الكامل
2012
Tom G. Wahl | Aleksey V. Burdakov | Andrey O. Oukharov | Azamat K. Zhilokov
Electronic Integrated Disease Surveillance System (EIDSS) has been used to strengthen and support monitoring and prevention of dangerous diseases within One Health concept by integrating veterinary and human surveillance, passive and active approaches, case-based records including disease-specific clinical data based on standardised case definitions and aggregated data, laboratory data including sample tracking linked to each case and event with test results and epidemiological investigations. Information was collected and shared in secure way by different means: through the distributed nodes which are continuously synchronised amongst each other, through the web service, through the handheld devices. Electronic Integrated Disease Surveillance System provided near real time information flow that has been then disseminated to the appropriate organisations in a timely manner. It has been used for comprehensive analysis and visualisation capabilities including real time mapping of case events as these unfold enhancing decision making. Electronic Integrated Disease Surveillance System facilitated countries to comply with the IHR 2005 requirements through a data transfer module reporting diseases electronically to the World Health Organisation (WHO) data center as well as establish authorised data exchange with other electronic system using Open Architecture approach. Pathogen Asset Control System (PACS) has been used for accounting, management and control of biological agent stocks. Information on samples and strains of any kind throughout their entire lifecycle has been tracked in a comprehensive and flexible solution PACS. Both systems have been used in a combination and individually. Electronic Integrated Disease Surveillance System and PACS are currently deployed in the Republics of Kazakhstan, Georgia and Azerbaijan as a part of the Cooperative Biological Engagement Program (CBEP) sponsored by the US Defense Threat Reduction Agency (DTRA).
اظهر المزيد [+] اقل [-]Electronic Integrated Disease Surveillance System and Pathogen Asset Control System النص الكامل
2012
Wahl, Tom G.(MosAlarko Plaza One) | Burdakov, Aleksey V.(MosAlarko Plaza One) | Oukharov, Andrey O.(MosAlarko Plaza One) | Zhilokov, Azamat K.(MosAlarko Plaza One)
Electronic Integrated Disease Surveillance System (EIDSS) has been used to strengthen and support monitoring and prevention of dangerous diseases within One Health concept by integrating veterinary and human surveillance, passive and active approaches, case-based records including disease-specific clinical data based on standardised case definitions and aggregated data, laboratory data including sample tracking linked to each case and event with test results and epidemiological investigations. Information was collected and shared in secure way by different means: through the distributed nodes which are continuously synchronised amongst each other, through the web service, through the handheld devices. Electronic Integrated Disease Surveillance System provided near real time information flow that has been then disseminated to the appropriate organisations in a timely manner. It has been used for comprehensive analysis and visualisation capabilities including real time mapping of case events as these unfold enhancing decision making. Electronic Integrated Disease Surveillance System facilitated countries to comply with the IHR 2005 requirements through a data transfer module reporting diseases electronically to the World Health Organisation (WHO) data center as well as establish authorised data exchange with other electronic system using Open Architecture approach. Pathogen Asset Control System (PACS) has been used for accounting, management and control of biological agent stocks. Information on samples and strains of any kind throughout their entire lifecycle has been tracked in a comprehensive and flexible solution PACS. Both systems have been used in a combination and individually. Electronic Integrated Disease Surveillance System and PACS are currently deployed in the Republics of Kazakhstan, Georgia and Azerbaijan as a part of the Cooperative Biological Engagement Program (CBEP) sponsored by the US Defense Threat Reduction Agency (DTRA).
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