Experimental Study on Freeze Dried B.C.G. Vaccine Production

The Present Position of Freeze-Dried BCG Vaccine

I reviewed in 1952 the literature on freeze-dried BCG vaccine in order to help evaluate the relative merits of fresh liquid and dried vaccines on the basis of the results of vaccination. More BCG production centres have since taken to the preparation of dried BCG vaccine for either experimental use or for vaccination. In India, the scene of activity of the mass vaccination campaign has shifted ...

Production of freeze-dried human antihaemophilic cryoprecipitate.

Concentration of factor VIII from fresh plasma by cryoprecipitation remains the basis for preparation of products used to treat haemophilia A. This paper describes the preparation of a factor VIII concentrate from small plasma pools in transfusion centres with drying facilities. The dried concentrate from one litre of plasma dissolves very well in 50 or 100 ml of distilled water and contains ar...

Stability of Freeze-dried Inactivated Japanese Encephalitis Vaccine under Different Experimental Conditions

Stability of three batches of freeze dried inactivated mouse brain Japanese encephalitis vaccine, was evaluated in terms of percentage drop or otherwise in potency from their respective initial titers, after exposure to different experimental conditions for 4 -12 weeks. The potency was assayed by plaque reduction neutralization assay (PRNT) using chick embryo fibroblasts cells. The vaccine has ...

Determination of the Viability at +4°C of Freeze-Dried Attenuated Live Agalactiae Vaccine

The effect of freeze-dried bone allograft and partially demineralized freeze-dried bone allograft on regeneration of rabbit calvarial bone defects: A Histological and histomorphometric study

Background and Aims: Reconstruction of osseous defects is one of the ideal goals of periodontal treatments and dental implant therapy. Different biomaterials have been used for this purpose and many studies have tried to compare and introduce the best ones. The present study aimed to evaluate the effect of PDFDB (Partially Demineralized Freeze-Dried Bone Graft) and FDBA (Freeze Dried Bone Allog...