UPSC CSE Prelims 2011
Read the passage given below, study the graph that follows and answer the question.
During a party, a person was exposed to contaminated water. A few days later, he developed fever and loose motions. He suffered for some days before going to a doctor for treatment. On starting the treatment, he soon became better and recovered completely a few days later. The following graph shows different phases of the person's disease condition as regions A, B, C, D and E of the curve.
Which region of the curve indicates that the treatment yielded effective relief?
EXPLANATION
Correct Option (C)
The passage describes that after starting treatment, the person "soon became better and recovered completely a few days later." Region E on the curve depicts the final phase where the disease condition is actively diminishing towards full recovery. This significant decline in the disease state, leading to complete recovery, directly indicates that the treatment has yielded effective relief.
Incorrect Options:
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C: This region typically represents the peak severity of the disease, where symptoms are most pronounced. The passage states the person "suffered for some days" before treatment, suggesting C would be during this period of peak illness, not effective relief.
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D: This region would represent the initial phase of improvement following the commencement of treatment, where the disease condition begins to decline. While it signifies the start of recovery, region E more accurately reflects the advanced stage of effective relief leading to near-complete recovery, as the disease fully subsides.
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The curve does not indicate the treatment: This is incorrect. The passage explicitly links the initiation of treatment to the subsequent improvement and recovery. The curve, by showing the progression from illness to recovery, illustrates the impact and effectiveness of the treatment.