Which of the following statements is correct regarding common diseases affecting humans?
A: Malaria is caused by a virus transmitted through the saliva of infected Anopheles mosquitoes. 
B: Tuberculosis is a bacterial disease that primarily affects the lungs but can also spread to other organs. 
C: AIDS is a genetic disorder that weakens the immune system over time.
1. Only A
2. Only B
3. A and B
4. B and C
Subtopic:  Common Diseases in Humans |
 53%
From NCERT
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What is the causative agent of dengue fever in humans?
1. Aedes aegypti mosquito 2. A virus
3. A bacterium 4. Prion
Subtopic:  Common Diseases in Humans | Dengue |
From NCERT
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