Pseudomonas aeruginosa: Morphology, Biochemical reaction, Pathogenesis

Pseudomonads are a large group of aerobic, Gram-negative, non-fermentative bacilli. This contains over 200 species that were originally contained within the genus Pseudomonas. Some of them produce water soluble pigments which get diffused through the culture medium. The members are generally saprophytic in nature. They are widely distributed in different habitat like in soil, water, … Read more

Pathogenesis of Vibrio cholera

The sequence of events leading to cholera is basically simple and confined to the gut. The food and drink contaminated by cholera vibrios if ingested results to disease though small dosage is present. The organisms begin to multiply in the alkaline medium of the small intestine after passing the acid barrier of the stomach juices. … Read more