Biology : Human Health And Diseases

Q 5 / 15

UPSC CSE Prelims 2006

Consider the following statements:

  1. Meningococcal Meningitis is transmitted from person to person by mosquito bites.
  2. Vomiting and neck pain are two of the symptoms of Meningococcal Meningitis.

Which of the statement(s) given above is/are correct?

EXPLANATION

Correct Option

Option (b):

Meningococcal Meningitis is an acute bacterial infection that causes inflammation of the protective membranes (meninges) covering the brain and spinal cord. It is caused by the bacterium Neisseria meningitidis.

Statement 2 is correct: Vomiting and neck pain are characteristic symptoms of Meningococcal Meningitis. Other common symptoms include sudden onset of high fever, severe headache, sensitivity to light (photophobia), confusion, and a stiff neck (nuchal rigidity).

Incorrect Options

Statement 1 is incorrect: Meningococcal Meningitis is not transmitted by mosquito bites. Its primary mode of transmission is person-to-person through respiratory droplets (e.g., coughing, sneezing) or close, prolonged contact with an infected individual's throat secretions. Mosquitoes are vectors for various viral and parasitic diseases, but not for meningococcal disease.

Option (a) is incorrect because statement 1 is false.

Option (c) is incorrect because statement 1 is false, making "Both 1 and 2" an inaccurate choice.

Option (d) is incorrect because statement 2 is correct, thus "Neither 1 nor 2" is not the right answer.

SOURCENCERT Class 12 Biology Chapter 8: Human Health and Disease