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CAIE IGCSE Biology 10.1.3 Pathogen Transmission Routes

Practise classifying direct contact and body-fluid transmission separately from indirect routes through the environment.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • identify blood and other infected body-fluid exchange as direct transmission
  • identify contaminated surfaces, food, water, air or soil as indirect transmission
  • identify an animal carrying a pathogen between hosts as an indirect vector route

10.1.3—Pathogen is transmitted: (a) by direct question 1

[Maximum number: 2]

Fig. 6.1 is a diagram of the virus that causes measles.

Fig. 6.1

Fig. 6.1

Viruses and some bacteria are pathogenic. Diseases caused by pathogens are transmissible.

State two ways that a pathogen can be transmitted indirectly.

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