GCSE Biology (AQA)

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Malaria

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Infection and Response Communicable Diseases

Malaria

2:12 Diseases Caused by Bacteria, Fungi and Protists
Spec 4.3.1.5
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  • Malaria is caused by a protist pathogen.
  • Multiple protists can cause malaria, but only the general cause (protists) is necessary for the exam.
  • Malaria is transmitted through mosquitoes, which act as vectors.
  • Mosquitoes carry the protists and transfer them to humans through their saliva during a bite.
  • The lifecycle of the malaria-causing protist includes development within the mosquito.
  • The term "vector" refers to organisms that carry pathogens and spread infections.
  • Malaria infection can cause repeated fever episodes and can be fatal.
  • Protists travel to the liver via the bloodstream, reproduce, and then re-enter the bloodstream.
  • Malaria can be treated with drugs, but there is no vaccine available, and it still results in fatalities.
  • Control measures for malaria include using nets and insect repellents to prevent mosquito bites.
  • Nets act as a physical barrier to protect individuals from mosquito bites.
  • Insecticides are used to kill mosquitoes and treating standing water prevents mosquito breeding.
  • Reducing mosquito breeding helps control the spread of malaria.

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