Infection & Response

• Pathogens are disease-causing viruses, bacteria, fungi or protists, which can infect animals and plants
• Humans have an immune system, which can defend them from pathogens
• Antibiotics

  Can be used to treat some diseases
• Vaccinations

  Allow protection against specific diseases, but the level of protection depends on the amount of people vaccinated
• Understanding how to approach exam questions helps to boost exam performance
• Question types will include multiple choice, structured, mathematical and practical questions