The Present Position of Freeze-Dried BCG Vaccine
نویسنده
چکیده
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 from urban and semiurban to rural areas in remote parts of the country, thereby accentuating the practical problems in the transport of fresh liquid BCG vaccine and its use in the field. There has therefore been in recent years a renewed interest in dried BCG vaccine in this country, as also in some other countries.
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