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Long-term preservation of streptococci

Brahmadathan, K.N.; Pandian, R.; Koshi, G.

Indian Journal of Medical Research 101(5): 64-65

1995

ISSN/ISBN: 0019-5340
PMID: 7729845
Document Number: 439834
Strains of 12 T types of group A streptococci preserved by sand desiccation and stored at 4 degrees to 10 degrees C were regularly sub-cultured to check their viability. For this, streptococci coated onto sand particles mixed with sterile sheep blood were inoculated into Todd-Hewitt broth with added blood and incubated for 24 to 48 h. Checking for viability every six months showed that group A streptococci could be preserved by this method for 21 yr. Our study shows that sand desiccation is a convenient and cheap method for the long-term preservation of streptococci in laboratories where other methods of preservation are not feasible on a regular basis.

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Brahmadathan, K.N.; Pandian, R.; Koshi, G. 1995: Long-term preservation of streptococci Indian Journal of Medical Research 101: 64-65
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