Paper I
2024 December (Supplementary) (2019 Scheme) · 100 marks · 180 min

Question

List four modes of transmission of infection, with one example each.

Q134 marksShort Answers

Answer

Four modes of transmission of infection, with one example each:

  1. Direct contact — e.g., impetigo (Staphylococcus aureus/Streptococcus pyogenes), spread by direct skin-to-skin contact.
  2. Droplet transmission — e.g., influenza, spread via respiratory droplets from coughing/sneezing.
  3. Vector-borne transmission — e.g., malaria (Plasmodium species), transmitted by the Anopheles mosquito.
  4. Faeco-oral (vehicle-borne) transmission — e.g., cholera (Vibrio cholerae), via contaminated water/food.

(Other valid examples: airborne — tuberculosis via droplet nuclei; vertical — syphilis/HIV from mother to child.)

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