Variant Creutzfeldt-Jakob disease (vCJD) is a prion disease of cattle - VCE - SSCE Biology - Question 34 - 2020 - Paper 1
Question 34
Variant Creutzfeldt-Jakob disease (vCJD) is a prion disease of cattle. It is sometimes called mad cow disease. It can occur by feeding cattle food that contains prio... show full transcript
Worked Solution & Example Answer:Variant Creutzfeldt-Jakob disease (vCJD) is a prion disease of cattle - VCE - SSCE Biology - Question 34 - 2020 - Paper 1
Step 1
vCJD: Prevent all cattle that show symptoms of mad cow disease from reproducing.
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Answer
This ensures that infected cattle do not pass on the disease to future generations, thereby reducing the prevalence of vCJD.
Step 2
vCJD: Test all cattle for the presence of the prions.
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Testing helps identify infected cattle early, enabling swift action to remove them from the food supply.
Step 3
vCJD: Destroy all cattle that have been fed infected food containing the prions.
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Eliminating potentially infected cattle is crucial in preventing the transmission of prions in the food chain.
Step 4
vCJD: Stop selling cattle meat.
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This action directly prevents the consumption of infected meat, effectively reducing the risk of human cases of vCJD.
Step 5
Yellow fever: Remove breeding grounds for mosquitoes.
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By eliminating places where mosquitoes can reproduce, we significantly reduce the mosquito population and, therefore, the spread of yellow fever.
Step 6
Yellow fever: Ensure that all healthcare professionals wear gloves when working with infected patients.
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Wearing gloves protects healthcare workers and helps prevent the spread of infection within healthcare settings.
Step 7
Yellow fever: Ensure that people take measures to reduce their chances of being bitten by mosquitoes.
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Preventive measures such as using insect repellent and wearing protective clothing can significantly lower the risk of infection.
Step 8
Yellow fever: Instruct people who are infected with yellow fever to wear masks in public places.
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Wearing masks can help reduce the transmission of viruses among the population, protecting others from infection.
