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blackquarterthe disease is otherwise known as black leg or emphysematous gangrene and it is associated with severe toxaemia emphysematous swelling of
johnes diseaseit is also known as paratuberculosis characterized by chronic enteritis and progressive weakness in dairy animalsetiology mycobacterium
tuberculosistuberculosis in animal is caused by mycobacterium bovis m tuberculosis and m avium and among these the most important causal agent is m
prevention and controlthe organism is sensitive to penicillin tetracycline and other broad-spectrum antibiotics newer generation drugs are being used
diagnosisclinical signs in most of the cases in initial stages like bacterial infections there is leucocytosis with neutrophilia which at later
haemorrhagic septicaemiait is also known as septicemic pasteurellosis or barbone and the disease is clinically characterized by high fever excessive
brucellosisit is also called as bangs disease or contagious abortion as it causes abortion in late pregnancy and infertilityetiology it is caused by
clinical manifestationssince the disease due to chlamydia involves many organssystems system-wise descriptions of clinical signs is described as
anthraxit is also known as spleenic fever the peracute form of the disease in animals is manifested by sudden death with oozing of dark-coloured
pathogenesisthe mode of intracellular replication of chlamydial agents is investigated morphologically and cytochemically with both light and
advanced vaccine technology genetic engineering technology is the major scientific revolution of 20th century this has helped in developing vaccine
nucleic acid hybridization this is a process by which a suitably labeled dna or rna from a known infectious agent is used to probe its complementary
epidemiologythe organism does not appear to be very host or tissue specific and can infect naturally a large number of avian and mammalian species
restriction enzyme analysis the restriction endonuclease analysis of viral dna fragments or dna fingerprinting discovered in 1970s has
polymerase chain reaction pcr the pcr technique enables the exponential amplification of nucleic acid sequences from any biological samples in the
etiologythe infectious agent of psittacosis - lymphogranuloma venerum trachoma group plvg is an obligate intracellular parasite and is classified as
chlamydiosisamongst various causes of morbidity and mortality chlamydiosis is recognized as one of the important infectious conditions and emerging
enzyme - linked immunosorbent assay elisa elisa in its var io us modifications eg plate elisa sandwich elisa competitive elisa elisa strip or
monoclonal antibodies hybridoma technology for production of monoclonal antibodies is one of the most important advancements in the field of
demonstration of immune responses and biomarkers this may be done either on the basis of sero-conversion study on paired sera samples or by challenge
isolation and identification of the etiological agent isolation of the etiological agent is attempted in chicken embryos cell cultures laboratory
demonstration of specific antigens the presence of the viral antigen in the infected tissues and cells can be demonstrated by fluorescent antibody
direct demonstration of the causative agent by electron microscopy emwhere facilities for electron microscopy are available and a viral disease is
procedures for diagnosisepidemiological data the epidemiological information with regard to the history symptoms morbidity mortality seasonality