What this practice covers
These questions are drawn from past CIE 9700 Biology papers and filtered to infectious diseases. You answer, you find out immediately whether you were right, and you get the reasoning for the correct option and for each distractor. Wrong answers go to a mistakes locker so you can come back to exactly those.
Practice is free. You need an account only so your progress and your mistakes are still there next time.
Start practising practice questions →
What examiners see students get wrong here
These are the errors that cost marks on infectious diseases, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Saying malaria is caused by a mosquito. It is caused by Plasmodium; the mosquito is the vector.
- Saying HIV and AIDS are the same thing. HIV is the virus; AIDS is the condition that follows.
- Saying cholera kills through the bacterium spreading round the body. It stays in the gut; the killer is dehydration from the toxin.
- Saying TB is treated with a single antibiotic for a week. It needs a combination, for months.
- Naming only biological control measures when the question asks about prevention. The social and economic factors carry as many marks.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Infectious diseases revision notes.