In a population of 10000 people, vaccination is predicted to prevent 300 cases of serious disease. A serious vaccine reaction is expected in 1 in every 5000 vaccinated people.
Which statement correctly compares the predicted benefits and risks if everyone is vaccinated?
There are 150 serious disease cases prevented per expected serious vaccine reaction.
There are 300 serious disease cases prevented per expected serious vaccine reaction.
There are 500 serious disease cases prevented per expected serious vaccine reaction.
There are 600 serious disease cases prevented per expected serious vaccine reaction.
45 exam-style questions on Edexcel GCSE Biology 5.3 Immune system and medicines, covering 5.3.1 The specific immune system, 5.3.2 Response to immunisation, 5.3.3 Advantages and disadvantages of immunisation, 5.3.4 Antibiotics and bacterial infections, 5.3.5 Aseptic techniques in culturing, 5.3.6 Cross-sectional areas of cultures, 5.3.7 Stages of developing new medicines, and 5.3.8 Production of monoclonal antibodies. Each one has a worked solution and a mark scheme showing where the marks go.