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Evaluation of National Anthrax Strategy in Livestock in Iran
2017
esmaeili, hossein | Moradigravand, Morad | قریب ممبینی, منوچهر | hamedi, mona
Background: Anthrax is a widespread disease in Iran and its importance is not only restricted to the economic losses in livestock but also is significant in terms of public health. Objectives: The purpose of this study was to evaluate the anthrax combating program in livestock since 1989 to 2014. Methods: In this study, national strategy of anthrax disease in livestock was evaluated from the beginning to 2014. Data were analyzed using Pearson's correlation coefficients. Results: Vaccination against anthrax began from 1929. From1989 to 2014, vaccination had been done for 78621001 cattle and 1357680466 small ruminants. In these years, there were 452 and 761 epidemics of disease in cattle and small ruminants respectively. In addition, 666 cattle and 5775 small ruminants were dead due to anthrax. There was no statistically significant relationship between the number of epidemics and vaccination, as well as between the rate of mortality and vaccination in livestock population.Conclusion: Without planning based on epidemiological principles, vaccination alone will not actually be able to decrease the incidence of the disease, so vaccination should be targeted along with control and surveillance.
Show more [+] Less [-]The Rich Mapping: Be a Supplementary Approach for Anthrax Control at Community Level
2021
Md. Shahjahan Ali Sarker | Md. Ahosanul Haque Shahid | Md. Nazmul Hoque | M. Asaduzzaman Sarker | Md. Bahanur Rahman | SK Shaheenur Islam
Anthrax is one of the most important diseases that can be transmitted from cattle to humans, especially in countries with a high density of cattle. Cattle are usually infected by the ingestion of Bacillus anthracis spores with food ingredients. For that reason, the adequacy of anthrax spores in the soil is considered as one of the causes of anthrax in cattle. The present study is based on the identification of anthrax spores in the soil and the development of a map based on the presence of spores, so that the people of the community can take a practical step in this regard in selecting the place for their cattle to graze. For this purpose, soil samples were collected from the studied areas. After extraction of soil DNA with DNA extraction kits, all samples were tested using a qualitative detection method. For a rapid and reliable qualitative detection system for Pathogenic B. anthracis spores isolated from soil samples, the specific primer of two plasmids, pXO1 (gene Pag), pXO2 (genes Cap), and S-layer locus (gene Sap) were used. The presence of spores was found in 7 out of 50 samples. The results of a qualitative detection method of Bacillus anthracis spores in the pastureland inserted as per their GPS coordinates. Based on the presence of pathogenic anthrax spore in a specific location, a map was then prepared and displayed in the community. So that the cattle owners can decide where their cattle will graze and be careful to prevent spore contact of their animal. Among the various effective anthrax prevention measures, rich mapping according to the presence of spores can be helpful in community level that will protect people from anthrax disease in the future.
Show more [+] Less [-]Naturally acquired antibodies to Bacillus anthracis protective antigen in vultures of southern Africa
2008
Turnbull, P.C.B.(Arjemptur Technology Ltd) | Diekmann, M.(Rare and Endangered Species Trust) | Kilian, J.W.(Etosha Ecological Institute) | Versfeld, W.(Etosha Ecological Institute) | De Vos, V. | Arntzen, L.(National Institute for Communicable Diseases) | Wolter, K.(Rhino and Lion Wildlife Conservation NPO Nyoka Ridge) | Bartels, P.(National Zoological Gardens of SA) | Kotze, A.(National Zoological Gardens of SA ,University of the Free State)
Sera from 19 wild caught vultures in northern Namibia and 15 (12 wild caught and three captive bred but with minimal histories) in North West Province, South Africa, were examined by an enzyme-linked immunosorbent assay (ELISA) for antibodies to the Bacillus anthracis toxin protective antigen (PA). As assessed from the baseline established with a control group of ten captive reared vultures with well-documented histories, elevated titres were found in 12 of the 19 (63 %) wild caught Namibian birds as compared with none of the 15 South African ones. There was a highly significant difference between the Namibian group as a whole and the other groups (P < 0.001) and no significant difference between the South African and control groups (P > 0.05). Numbers in the Namibian group were too small to determine any significances in species-, sex- or age-related differences within the raw data showing elevated titres in four out of six Cape Vultures, Gyps coprotheres, six out of ten White-backed Vultures, Gyps africanus, and one out of three Lappet-faced Vultures, Aegypius tracheliotus, or in five of six males versus three of seven females, and ten of 15 adults versus one of four juveniles. The results are in line with the available data on the incidence of anthrax in northern Namibia and South Africa and the likely contact of the vultures tested with anthrax carcasses. It is not known whether elevated titre indicates infection per se in vultures or absorption of incompletely digested epitopes of the toxin or both. The results are discussed in relation to distances travelled by vultures as determined by new tracking techniques, how serology can reveal anthrax activity in an area and the issue of the role of vultures in transmission of anthrax.
Show more [+] Less [-]Ecology and epidemiology of anthrax in cattle and humans in Zambia
2006
Siamudaala, V.M.(Zambia Wildlife Authority, Chilanga) | Bwalya, J.M. | Munag'andu, H.M. | Sinyangwe, P.G. | Banda, F. | Mweene, A.S. | Takada, A. | Kida, H.
Anthrax is endemic in Western and North-western Provinces of Zambia. The disease occurs throughout the year and impacts negatively on the economy of the livestock industry and public health in Zambia. During 1989-1995, there were 1,626 suspected cases of anthrax in cattle in Western province and of these 51 were confirmed. There were 220 cases of human anthrax cases in 1990 alone and 248 cases during 1991-1998 with 19.1% and 7.7% case fatality rates, respectively. Interplay of the ecology of affected areas and anthropogenic factors seem to trigger anthrax epidemics. Anthrax has drawn considerable attention in recent years due to its potential use as a biological weapon. In this paper, the history, current status and approaches towards the control of the disease in Zambia are discussed. Quarantine measures restrict trade of livestock and exchange of animals for draught power resulting in poor food security at household levels. Challenges of anthrax control are complex and comprise of socio-political, economical, environmental and cultural factors. Inadequate funding, lack of innovative disease control strategies and lack of cooperation from stakeholders are the major constraints to the control of the disease.
Show more [+] Less [-]A review of the infectious diseases of African wild ruminants
2001
Worthington, R.W. | Bigalke, R.D.
Review of anthrax: A disease of farm animals
2022
Md. Emtiaj Alam (Department of Veterinary and Animal Sciences, Faculty of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi, Bangladesh) | Md. Mostofa Kamal (Department of Veterinary and Animal Sciences, Faculty of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi, Bangladesh) | Moizur Rahman (Department of Veterinary and Animal Sciences, Faculty of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi, Bangladesh) | Aurangazeb Kabir (Department of Veterinary and Animal Sciences, Faculty of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi, Bangladesh) | Md. Shafiqul Islam (Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh) | Jayedul Hassan (Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh.)
Anthrax is a rapidly fatal infectious disease affecting herbivores and people. In the farm ani¬mals, cattle and sheep are more susceptible, followed by goats and horses, while dwarf pigs and Algerian sheep are relatively resistant. Bacillus anthracis, the causative agent of anthrax, produces spores and persists for decades in the soil, initiating an outbreak through a favorable climate shift. Anthrax is enzootic in many Asian and African countries, and is reported in Australia, some parts of Europe, and America. The clinical courses of this disease in animals are peracute, acute, sub¬acute, and chronic forms. In severely infected cases, the animals are dead without premonitory clinical signs. The blood may fail to clot and can be found in the mouth, nostrils, and anus in the animals that die from anthrax. This bacterium is susceptible to many antibiotics, yet only penicillin and oxytetracycline have the most effective under field conditions. When an outbreak occurs in a defined area, it is necessary to take early steps to break the infection cycle by maintaining strict biosecurity and vaccinating uninfected animals. This disease is still a challenge to farm animal production in many countries. This review intends to give a fair knowledge of the etiology, epi¬demiology, pathogenesis, clinical presentation, diagnosis, treatment, and control of this disease. [J Adv Vet Anim Res 2022; 9(2.000): 323-334]
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