Question

Which one of the following is a causative agent of plague?
a. Shigella flexneri
b. Bordetella pertussis
c. Staphylococcus aureus
d. Yersinia pestis

Answer 1

Hint: We can say that the disease Plague is an infectious disease that usually begins with a fever. And then it is normally followed by weakness and headache. The synonyms of this disease include the swelling of lymph nodes. whereas in the septicaemic form, the tissues may turn to be black and they die. However, in the pneumonic form, the synonyms include the squatness of breath, coughing, and pain in the rib cage may occur.

Complete answer:
- The causative agent of the fundamental intrusive infectious disease classically referred to as the plague is known to be the Gram-negative bacterium Yersinia pestis. We can say that the Plague is a widespread zoonotic disease.
- One can say that Shigella flexneri is a Gram-negative bacterium that causes Diarrhea that is frequently self-limiting. However, in the absenteeism of tolerable medicinal care or immunocompromised patients may develop this disease into a Life-threatening disease.
- A respiratory illness commonly known as Pertussis (or whooping cough) is a very transmissible sickness instigated by a type of microorganisms called Bordetella pertussis. These bacteria get attach to the cilia of the upper respiratory system and cause trouble in breathing
- Staphylococcus aureus causes infection in human beings which may also include Nausea and vomiting, Diarrhea, Dehydration in the patient.

Hence, the correct answer is option (D).

Note: Plague is a disease that can be spread from animals to people. Thus, we can say that this disease is caused by Yersinia pestis. This disease has destructive effects on the human population throughout history. If the lymph node is overawed, the taint can permit the circulation, triggering the start of secondary septicaemic plague. However, if the lungs are sown, it can source secondary pneumonic plague.