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Name a development in the history of our understanding of malaria and identify a prevention strategy that resulted from that development - HSC - SSCE Biology - Question 25 - 2014 - Paper 1
Question 25
Name a development in the history of our understanding of malaria and identify a prevention strategy that resulted from that development. Scientists are currently d... show full transcript
Worked Solution & Example Answer:Name a development in the history of our understanding of malaria and identify a prevention strategy that resulted from that development - HSC - SSCE Biology - Question 25 - 2014 - Paper 1
Step 1
Name a development in the history of our understanding of malaria and identify a prevention strategy that resulted from that development.
Answer
Malaria was discovered to be transmitted by mosquitoes. A significant prevention strategy that resulted from this understanding is the use of mosquito nets over beds at night to prevent mosquito bites, thereby reducing the incidence of malaria.
Step 2
Outline how a vaccine against malaria would prevent the occurrence and spread of the disease in a population.
Answer
A vaccine against malaria would stimulate the immune system to produce memory B cells and T cells. When an individual encounters the malaria plasmodium, these immune cells would swiftly respond to immobilize and eliminate the pathogen. If a substantial portion of the population is vaccinated, the transmission of the malaria pathogen would decline, as the plasmodium would be unable to complete its life cycle in vaccinated individuals. This would ultimately lead to a reduction in both the occurrence and the spread of malaria in the population.