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Some historical data concerning edema disease of swine (ED) are mentioned. The etiology and pathogenesis of ED is presented, according to the present state of knowledge. Referring to the classification of Escherichia (E.) coli pathogenic to animals the STEC (Shigatoxin E. coli) pathotype and the virotype causing ED, are characterized. The pathogenicity factors: Shigatoxin 2e (STx2e) and fimbrial variant...
Marek’s disease (MD) is a lymphoproliferative disease of poultry caused by a cell-associated herpesvirus called Marek’s disease virus (MDV). The disease has a significant economic impact on the poultry industry. MD is the first oncogenic disease controlled by vaccination. Live vaccines are administered either to one-day old chicks or to 18-day old embryos. However, although MD vaccines target MDV...
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