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The study has demonstrated that TGE virus at 37°C is inactivated fastest by NP₄₀ at 0.01 per cent concentration (2 h) and most slowly by formalin (5 h). At 26°C and at a concentration of 0.05 per cent, NP₄₀ inactivates it fastest (3 h), while formalin does it only after 9 h. The influence of the inactivating factors on the virion of the TGE virus was characterized by destructive properties of formalin, and to a lesser extent of NP₄₀ and AEI. Vaccines prepared from the virus inactivated with the studied factors produced Sn antibodies in the blood serum. The highest level of antibodies was found in the group of pigs inoculated with vaccines received as a result of AEI and NP₄₀ inactivation. It was also in these groups cf pigs that antibodies neutralizing the TGE virus were found in the feces.
In 2006 and early 2007, three major infectious diseases occurred in various parts of the world. The first was the continuation in some countries of the highly pathogenic avian influenza (HPAI), due to virus subtype H5N1. The second was the first documented expansion of bluetongue (BT) in the northern hemisphere reaching a latitude as high as 52°36’41” N. The third was the reoccurrence of foot and mouth disease (FMD) in certain areas of the world. In 2006 a total of 47 countries: Africa (8), Asia (15) and Europe (24), reported HPAI outbreaks due to H5N1. This paper contains details about the global epidemic situation of this disease. The first occurrence of BT in August 2006 in the Netherlands and afterwards in other Northern European countries was related to climate changes in the direction of the greenhouse effect, enabling the colonization of this region by different Culicoides species being vectors of BT virus. The epizootic situation of this disease, particularly in Northern Europe, was characterized. FMD continued to be a major epizootic disease in the Middle East and was difficult to control because of the traditional large-scale movements of animals in this region. The article also mentions other countries where FMD was diagnosed in 2006 and 2007 such as Turkey, East Amman. Israel, the Palestinian Autonomous Territories, Egypt, Botswana, Guinea, South African Republic, Democratic People’s Republic of Korea, People’s Republic of China, Vietnam, Ecuador, Argentina, Brazil and Bolivia, and identifies its serotypes.
Medycyna Weterynaryjna
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2010
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tom 66
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nr 12
s.795-709,tab.,bibliogr.
According to the OlE rapporteur, Dr Karim Ben Jebara, Head of the OlE Animal Health Information Department, there were no major regional or international events involving OlE listed diseases in 2009 or early 2010. A continuation of the situation with quantitative and qualitative differences was witnessed. The table for the most frequently reported diseases is presented. The next table informs about the total number of confirmed human cases and deaths caused by the avian influenza subtype H5Nl. Although it is not an OlE listed disease pandemic influenza A H1N1 (2009) has been notified to the OlE as an emerging disease. The occurrence of this infection in swine, turkeys and dogs, including countries where it occurred, is characterized. African swine fever outbreaks reported to OlE between January 2009 and March 2010 by Armenia and Russia are mentioned. The infection is present in wild boar and domestic swine. Because of its location it is endangering the swine population in Eastern and Central Europe. After a long time of not occurring, in 2009 glanders was reported from Brazil, Ethiopia, Iran, Afganistan, India, Myanmar and Mongolia. OlE recommended that given the potentially severe consequences for humans it is important to implement regular testing in the event of international movement of Equidae and conduct national surveillance. In the report sheep pox and goat pox, Rift Valley fever, West Nile fever, bovine anaplasmosis, bovine babesiosis, equine piroplasmosis, notified bee diseases, and some infections occurring in 2009 and beginning of 2010 in wildlife are also mentioned and discussed.
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