Bacteria Yersinia pestis causes an infectious disease Plague, typically seen in smaller mammals and its fleas. It is a zoonotic disease, transmitted between animals through its fleas and it can transmit from animals to humans. Yersinia pestis was formerly known as Pasteurella pestis. It is a gram-negative, rod-shaped bacteria. In the medieval times, plague was known as Black Death. If left untreated without the administration of antibiotics, it can turn fatal. Provided below are a few questions on the topic Plague, along with answers.
1. The causative of the bacterial disease, Plague is
(a) Vibrio
(b) Mycobacterium
(c) Clostridium
(d) Pasteurella pestis
Answer: (d)
2. In the life cycle of plague, this is the role of humans
(a) primary host
(b) secondary reservoir
(c) accidental intruder in rat flea cycle
(d) primary transmission vector
Answer: (c)
3. This transmits Plague
(a) Tse-tse fly
(b) House fly
(c) Mosquito
(d) Rat flea
Answer: (d)
4. This set shows bacteria diseases
(a) Mumps, Malaria, poliomyelitis
(b) Tuberculosis, Tetanus, Measles
(c) Plague, Leprosy, Diphtheria
(d) Mumps, Typhoid, Cholera
Answer: (c)
5. What is the biological name of the vector/insect which carries Plague?
(a) Pediculus humanus
(b) Bacillus pestis
(c) Anopheles mosquito
(d) Xenopsylla cheopis
Answer: (d)
6. This plague type is the most serious of all forms of this disease and is contagious
(a) Septicemic Plague
(b) Pneumonic Plague
(c) Bubonic Plague
(d) None of these
Answer: (b)
7. Which of the following is associated with “Black death”
(a) Measles
(b) Plague
(c) Tuberculosis
(d) Cancer
Answer: (b)
8. This is the most common form of plague causing swelling of the lymph nodes
(a) Pneumonic plague
(b) Bubonic plague
(c) Septicemic plague
(d) All of these
Answer: (b)
9. The causative of Plague is
(a) Leishmania donovani
(b) Yersinia pestis
(c) Trichinella spiralis
(d) Salmonella typhimurium
Answer: (b)
10. This can be used to prepare the vaccine of Tularemia and Plague
(a) Formalin inactivated suspension of virulent bacteria
(b) Heat killed suspension of virulent bacteria; avirulent live bacteria
(c) Chemical fraction of the causative bacteria
(d) All of these
Answer: (d)
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