Cholera – Causative organism and mode of transmission

Causative organism Vibrio cholerae is the causative organism of cholera. It is a gram-negative bacterium that infects the small intestine. It produces the toxin choleragen also abbreviated as CTX, which is responsible for the colossal diarrhoea characteristic of cholera disease. Vibrio cholerae is naturally found in brackish or salt water. As a facultative anaerobe, it is able…… Continue reading Cholera – Causative organism and mode of transmission

Gonorrhoea – Causative organism and mode of transmission

Gonorrhoea is a sexually transmitted infection caused by Neisseria gonorrhoeae. This infection is spread from one person to another through unprotected sexual activities. So, people with numerous sexual partners or those who neglect the use of condoms are at a greater risk of contracting this disease. Let’s digest some facts about about sexually transmitted infections (WHO): About…… Continue reading Gonorrhoea – Causative organism and mode of transmission

Tuberculosis – Causative organism and mode of transmission

Tuberculosis is prevalent in the developing countries of Asia, Africa and South America. It is one of the commonest causes of death and illness in these regions, as over 95% cases and deaths are recorded in these regions. In general, tuberculosis normally affects the lungs but it can also affect other parts of the body.…… Continue reading Tuberculosis – Causative organism and mode of transmission