Although nuimerous studies have been reported on the virucidal activity of' various substances used as aerosolic mists or in direct contact with the influenza virus, only two studies have been published describing the action of vapors on viruses, so far as the writers are aware. Remlinger and Bailly (1942) showed that when the viruses of rabies, pseudorabies, or eastern equine encephalomyelitis...

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 ...

The inactivation dynamics of rabies virus (PV strain) by binary ethylenimine, and the immunogenic properites and the stability of the vaccines prepared using this agent, were studied. Binary ethylenimine at a final concentration of 0.01 M was prepared wtih 2-bromoethylamine hydrobromide in alkaline solutions, either separately from or in suspensions of rabies virus propagated in BHK cells. The ...

Influenza is a contagious viral disease that is seen in avian, human and other mammals, so its control is important. Vaccination against influenza virus subtype H9N2 is one of the ways in controlling program, for this reason several vaccines has been produced. Recently, application of inactivated oil-emulsion vaccines in poultry for controlling low pathogenic avian influenza is increasing. At p...

A producer administered 2 US Department of Agriculture-licensed adjuvanted veterinary vaccines (inactivated bovine rotavirus-coronavirus vaccine; Clostridium perfringens type C-Escherichia coli bacterin-toxoid) into muscles of the left and right hips of 469 pregnant beef cows. Within 24 hours, 5 cattle were recumbent, and another 2 had non-weight bearing pelvic limb lameness (1.5% affected; 7/4...

newcastle disease (nd) is one of the most important diseases that affect birds; the epizootic nature of the disease has caused severe economic losses in the poultry industry worldwide. in this experiment nd virus (ndv) was inactivated by two different chemicals binary ethylenimine (bei) and formaldehyde. formaldehyde was used at 0.1%, while bei was used at concentrations of 1 to 4 mm. ndv inact...

This experiment was conducted for evaluating the humoral immune responses induced by Poly Lactide-co-Glycolide Acid (PLGA) microspheres coupled inactivated Newcastle Disease Virus (NDV) vaccine in comparison to an ‘in-house’ prepared inactivated and a live commercial vaccine. PLG microparticles containing inactivated NDV were prepared by a double emulsion technique based on solvent evaporation ...

The study investigated the effects of FMD vaccination on acute phase response and milk composition in HF crossbred cows (n = 12) using a cross-over experimental design. In trial 1, one group 6) received inactivated trivalent oil-adjuvanted vaccine [day post-vaccination, (dpv) 0], while mock-vaccinated saline 6). After cooling period 15 days, was repeated by swapping groups. body temperature, dr...