streptococcus

STREPTOCOCCUS PYOGENES

Streptococcus pyogenes, a Group A Streptococcus, is a Gram-positive bacterium causing pharyngitis and various streptococcal diseases like scarlet fever, cellulitis, and necrotizing fasciitis. It produces numerous virulence factors including streptolysins and exotoxins. Diagnosis involves cultural, microscopic, and serological tests. Treatment includes antibiotics like penicillin, and no vaccines exist currently.

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Bacteriology, , , , , , , , , , ,

LACTIC ACID BACTERIA (LAB)

Lactic acid bacteria (LAB) are a group of Gram positive, non-sporing bacteria that carryout lactic acid fermentation of carbohydrates or sugars. Lactic acid fermentation is a type of fermentation carried out by LAB in which sugars including glucose, lactose and pentoses are converted to lactic acids or a mixture of lactic acids and other products.

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Industrial Microbiology, , , , , , , , ,

DENTAL CARIES

Dental caries is simply defined as the decaying of the teeth. It can also be called dental decay. Dental caries or dental decay is a gradual disintegration of the teeth beginning from the tooth surface and progressing inwards. And it is usually initiated by microbial activity going on around the tooth surface. Dental caries include

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Microbiology of Oral Infection, , , , , , , , ,