Many diseases are transmitted by vectors - VCE - SSCE Biology - Question 21 - 2003 - Paper 1
Question 21
Many diseases are transmitted by vectors.
A vector would have been involved in the case of a person developing
A. influenza after visiting a friend with influenza.
B... show full transcript
Worked Solution & Example Answer:Many diseases are transmitted by vectors - VCE - SSCE Biology - Question 21 - 2003 - Paper 1
Step 1
A. influenza after visiting a friend with influenza.
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Answer
This scenario does not involve a vector. Influenza is spread directly from person to person through respiratory droplets.
Step 2
B. diarrhoea after eating under-cooked chicken.
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Answer
This situation is related to foodborne transmission and does not involve a vector.
Step 3
C. gonorrhoea after sexual intercourse.
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Answer
Gonorrhoea is a sexually transmitted infection (STI) and also does not require a vector for transmission.
Step 4
D. malaria after a bite by a mosquito.
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Answer
This is a classic example of a vector-borne disease. The malaria parasite is transmitted to humans through the bite of infected female mosquitoes, making this the correct answer.
