Studies on the immunogenic properties of three lentogenic strains of newcastle disease virus

Studies on the Immunogenic Properties of Three Lentogenic Strains of Newcastle Disease Virus

The HI and SN titers produced by V2 (Laso ta Vaccine, chick-embryo origin) were more than VI (TCND) and V3 (Lasota tissue culture origin) vaccines. High percentage (96,%, 93,% & 90,%) of the three subgroup hens, when vaccinated with VI, V2 and V3 respectively, were found resistant to contact exposure challenge with 2 x 10 6 ELD 50 of virulent NDV Zabol strain. The egg production dropped slightl...

Plaque assay for avirulent (lentogenic) strains of Newcastle disease virus.

Avirulent (lentogenic) strains of Newcastle disease virus form plaques on chicken embryo lung monolayers in 48 to 72 h.

Immune response of chickens to four lentogenic strains of Newcastle disease virus propagated in lamb kidney cell cultures

Generation of recombinant lentogenic Newcastle disease virus from cDNA.

Recombinant lentogenic Newcastle disease virus (NDV) of the vaccine strain Clone-30 was reproducibly generated after simultaneous expression of antigenome-sense NDV RNA and NDV nucleoprotein, phosphoprotein and RNA-dependent RNA polymerase from plasmids transfected into cells stably expressing T7 RNA polymerase. For this purpose, the genome of Clone-30, comprising 15186 nt, was cloned and seque...

Studies on the Immunogenic properties of Tissue-Culture Sheep Pox Virus

histological evaluation of the effect of three medicaments; trichloracetic acid, formocresol and mineral trioxide aggregate on pulpotomized teeth of dogs

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