Insecticide-treated bed nets reduce malaria by

  1. vaccinating people
  2. preventing mosquitoes biting at night
  3. killing Plasmodium in the blood
  4. cleaning water
Answer

B) preventing mosquitoes biting at night

They block the vector. AS & A Level Biology · Topic 10 Infectious Diseases · 10.1 Infectious diseases

Biology MCQ · More A Level Biology: Infectious diseases MCQs · Practise