CIE AS Biology

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Syllabus Edition

First teaching 2020

Last exams 2024

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10.1.1 Infectious Diseases

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Infectious Diseases

  • A disease is an illness or disorder of the body or mind that leads to poor health
  • Each disease is associated with a set of signs and symptoms
  • Infectious diseases are caused by pathogens and are transmissible (can be spread between individuals within a population)

Infectious & non-infectious disease table

Infectious and non-infectious disease table, downloadable AS & A Level Biology revision notes

Common Pathogens & Their Diseases

  • Four infectious diseases of worldwide importance are: cholera, malaria, tuberculosis (TB) and HIV/ AIDS
  • Worldwide the number of people infected with these diseases remains very high and these diseases pose serious public health problems now and for the foreseeable future
  • To control a disease, it is very important to know what causes it (known as the causative agent or pathogen)

Common pathogens & their diseases table

Common pathogens & their diseases table, downloadable AS & A Level Biology revision notes

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Lára

Author: Lára

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.