Q49 / 370 · NTA Abhyas (NEET) 2020 · Zoology · Human Health and Diseases

Which of the following groups of viruses are known to infect the nose and respiratory passage in humans?

  • A
    Retroviruses
  • B
    Echoviruses
  • Correct answer
    C
    Rhinoviruses
  • D
    Oncogenic viruses

Solution

Rhinoviruses cause one of the most infectious human ailments – the common cold. They infect the nose and respiratory passage but not the lungs. The common cold is characterised by nasal congestion and discharge, sore throat, hoarseness, cough, headache, tiredness, etc., which usually last for 3-7 days. Droplets resulting from cough or sneezes of an infected person are either inhaled directly or transmitted through contaminated objects such as pens, books, cups, doorknobs, computer keyboard or mouse, etc., and cause infection in a healthy person. 

Hence, the correct answer is option: 'C'.

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