UPSC Prelims 2020 GS Paper I · Q45 / 97 General Science medium

What is the importance of using Pneumococcal Conjugate Vaccines in India ? 1. These vaccines are effective against pneumonia as well as meningitis and sepsis. 2. Dependence on antibiotics that are not effective against drug-resistant bacteria can be reduced. 3. These vaccines have no side effects and cause no allergic reactions. Select the correct answer using the code given below :

  1. (a) 1 only
  2. (b) 1 and 2 only ✓ UPSC's answer
  3. (c) 3 only
  4. (d) 1, 2 and 3

Why the answer is (b)

• Streptococcus pneumoniae causes pneumonia, meningitis and sepsis, and is a leading killer of Indian children under five; PCV was added to the Universal Immunisation Programme in 2017 and rolled out nationwide in 2021.

• Statement 1 is correct: PCV protects against all three invasive pneumococcal diseases.

• Statement 2 is correct: preventing infection cuts antibiotic use and slows antimicrobial resistance, which is rising in pneumococci.

• Statement 3 is wrong: no vaccine is free of side effects; PCV can cause fever, injection-site pain and, rarely, allergic reactions.

• Hence 1 and 2 only, option (b).

Why the other options are wrong

(a) 1 only
Statement 2 on reducing antibiotic dependence is also correct.
(c) 3 only
Statement 3 is wrong: vaccines do have side effects.
(d) 1, 2 and 3
Statement 3 is wrong.

Asked in the GS Paper I of the UPSC Civil Services Preliminary Examination 2020, held on 4 October 2020. Question and answer key: Union Public Service Commission. Explanation: UPSC Answer Check.

Reading the answer is not the same as getting it right under a clock. Practise this question with UPSC's negative marking, and anything you miss goes into an error notebook until you get it right twice.

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