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Q. No.Identify the correct statement regarding typhoid fever in human beings:
1.
It is caused by a pathogenic protozoan Salmonella typhi
2.
The pathogen remains confined to the small intestine
3.
Widal test can confirm the infection very early in the disease
4.
Intestinal perforation and death may occur in severe cases
Subtopic: Typhoid Fever |
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A common cause of pneumonia in humans is:
| 1. | Streptococcus pyogenes | 2. | Hemophilus influenzae |
| 3. | Staphylococcus aureus | 4. | Rotavirus |
Subtopic: Pneumonia & Related Questions | Common Cold & Malaria Introduction |
88%
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Subtopic: Common Cold & Malaria Introduction |
87%
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Subtopic: Common Cold & Malaria Introduction |
91%
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The mechanical carrier of the causative agent of amoebic dysentery is:
| 1. | A protozoan | 2. | House fly |
| 3. | Mosquito | 4. | Rodent |
Subtopic: Amoebiasis |
79%
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Aedes aegypti is not a vector for:
| 1. | Dengue | 2. | Chikungunya |
| 3. | Japanese encephalitis | 4. | Yellow fever |
Subtopic: Common Cold & Malaria Introduction | Treatment & Life Cycle of Malaria |
71%
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Which of the following is also sometimes called as mosquito fish?
| 1. | Bombay duck | 2. | Gambusia |
| 3. | Pacific salmon | 4. | Pomfret |
Subtopic: Common Cold & Malaria Introduction |
94%
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What is incorrect regarding innate immunity?
| 1. | It is present at the time of birth |
| 2. | Physiological barriers prevent microbial growth |
| 3. | Natural killers, a cellular barrier, are a type of monocyte |
| 4. | It is a non-specific type of defense |
Subtopic: Details of Immunity |
67%
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Anamnestic response in acquired immunity is due to the fact that it is:
| 1. | characterized by memory | 2. | pathogen specific |
| 3. | huge in magnitude | 4. | due to lymphocytes |
Subtopic: Details of Immunity |
82%
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B cells:
| 1. | Do not produce antibodies but help T cells produce them |
| 2. | Are pathogen specific but do not retain the memory of previous encounters |
| 3. | Lack ability to distinguish between self and non-self |
| 4. | Are involved in humoral immune response |
Subtopic: Details of Immunity |
78%
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