background and aims: human t-lymphotropic virus (htlv) is a human retrovirus which has been known to cause adult t-cell leukemia/lymphoma and some other inflammatory disorders. patients with hereditary bleeding diseases are at high risk for these viruses. in this study, we evaluated serological htlv-i/ii infection among these patients in west azerbaijan of iran. material and methods: we studied...

background and aims: the aim of this study was application of gamma irradiated fmdv antigen for liquid phase blocking sandwich elisa (b-elisa) to quantify guinea pig anti fmdv type a87/irn antibody. methods: fmdv type a87/irn was propagated to a titer of 107.5/ml tcid50 and then irradiated by gamma irradiator. the irradiated 146 s antigen was purified by sucrose gradient centrifugation after in...

Rural poultry farming is common in the Northern provinces. Similar to commercial poultry, rural poultry is susceptible to most infectious diseases. In addition, by increasing the density of poultry farming, the probability of disease incidences has been increased. Newcastle disease is the most highly infectious disease which is endemic in Iran and causes outbreaks among commercial and rural pou...

09:30 Tristan Cazenave, Marek Cornu, Daniel Vanderpooten A two-phase meta-heuristic applied to the Multi-objective Traveling Salesman Problem Recently, a number of hybrid meta-heuristics have been successfully applied on different problems like the MO Traveling Salesman Problem (TSP), the MO Multidimensional Knapsack Problem and the MO Flow-shop Scheduling Problem. We present a method providing...

background and aims: ndv (newcastle disease virus) is one of the viruses that cause disease in avian with severe economic losses in the poultry industry in many countries. fusion protein (f) which plays a major role in the virus pathogenicity contains several regions that have a role in the fusion process. mutation in the sequence of hr1 & hr2 regions of this protein prevents fusion of the viru...

conclusions a high rate of 25% and 24.13% of hbv dna was detected among patients with hodgkin and non-hodgkin lymphoma, respectively. results three out of 12 (25%) hodgkin samples and seven out of 29 (24.13%) non-hodgkin showed positive hbv dna results. the results of sequencing revealed that the d genotype was predominant among the positive hbv patients. interestingly an unpredictable amino ac...

foot and mouth disease (fmd) is the most contagious disease of cloven-hoofed animals, causingsignificant economical losses in livestock animals. in this study fmd virus type a87/irn was cultured andmultiplied on bhk21 cells. the fmd virus was titrated by the tissue culture infection dose50 method(tcid50 /ml), the virus titration was 107.5.. the fmd virus samples were irradiated and inactivated ...

objective: the aim of this study was to construct a pcdna3.1+ vector containing fmdv type o/irn/1/2007-vp1 gene, protein expression in bhkt7 cells and evaluation of immune response in balb/c mice. materials and methods: fmdv type o/irn/1/2007 was isolated from a cattle in ray in 2007 and serotyped. the purified vp1 gene was sub-cloned into the ptz57r/t vector and pcdna3.1+ expression vector. t...

experimental infection of muscovy ducks with v4 strain of newcastle disease virus was undertaken to determine the response of the ducks to the virus and the possibility of virus transmission to ducks and chickens in village like conditions. twelve ducks were randomly and equally divided into three groups of control, inoculated and in-contact. additionally, the chickens were placed into two grou...