Question

Typhoid fever in human is caused by

• A. Yersinia pestis
• B. Corynebacterium
• C. Trichophyton
• D. Salmonella typhi

Answer 1

The correct option is D Salmonella typhi

An organism causing disease to its host is termed as pathogen. Pathogens can be bacteria, fungi, nematodes,viruses, etc. There are different pathogens, causing different types of diseases leading to adversely affecting the proper functioning of a body part or a whole organism.
Typhoid is a contagious disease of the intestine caused by a bacteria called Salmonella typhi. Typhoid is contracted by drinking or eating contaminated food and water, it is most common in developing countries in the world where people still have limited access to clean water and sanitation.
Trichophyton is a genus of fungi that causes disease like ringworm.
Corynebacterium is a genus of bacteria, gram-positive bacteria,which includes a diverse number of species and strains that cause diseases. One of the common diseases causing Corynebacterium is Corynebacterium diphtheriae, which causes the disease diphtheria.
Yersinia is a genus of bacteria, Yersinia pestis is a gram negative bacteria which causes a life-threatening disease called plague.