BCG vaccine (Vaccine against tuberculosis) developed by a Vet
Calmette and Guerin (veterinarian) developed vaccine for TB named after their name BCG (Bacillus Calmette–Guérin). Guerin a vet is pride to veterinary community.
This vaccine is on the World Health Organization’s List of Essential Medicines, which is the list of the most important medication needed in a basic health system.
BCG vaccination in prevention of bovine tuberculosis tried by Dr.M.Lourdusamy is published in IVJ 1995 and findings incorporated in text book preventive medicine by Alamendu Chakrabarthi
30% of human death estimated to be due to M.bovis . Most immuno deficiecy diseases increases importance to TB control.
The BCG vaccine is prepared from a strain of the attenuated (virulence-reduced) live bovine tuberculosis bacillus, Mycobacterium bovis, that has lost its virulence in humans by being specially subcultured in a culture medium, usually Middlebrook 7H9. Because the living bacilli evolve to make the best use of available nutrients, they become less well-adapted to human blood and can no longer induce disease when introduced into a human host. Still, they are similar enough to their wild ancestors to provide some degree of immunity against human tuberculosis. The BCG vaccine can be anywhere from 0 to 80% effective in preventing tuberculosis for a duration of 15 year
