Medical Definition of Rough strain
1.
Bacterial strains that have altered outer cell wall carbohydrate chains causing colonies on agar to change their appearance from smooth to dull.
In Streptococci the smooth strains are virulent whereas the rough strains are not. This is partly because the rough strains are much more readily phagocytosed.
(17 Dec 1997)
Lexicographical Neighbors of Rough Strain
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