Vaccinations

Answer the following questions on vaccinations:

1. What do white blood cells do to pathogens? (Use the term from the link).
2. From the link above, what are toxins and anti toxins made from?
3. Watch this animation, and explain HOW a vaccine keeps us from getting the certain disease again.
4. Use this link to say whether viruses or bacteria are smaller. What size is a rhinovirus?
5. What are special about the pathogens in this needle? (Assuming the boy is being vaccinated!)
6. Describe the difference between specific and non-specific immunity, using examples from the body outlines we put in your books two lessons ago (If you've already done this for homework you can skip it now).
7. If you have been immunised against 5 different diseases, what is the minimum number of antiodies that would currently be in your blood? (If you know you've had a different number, use that instead).
8. Extension - Read this article about malaria, and summarize the problems associated with developing vaccines.
9. Play the activity here. What issues are there for the white blood cells in finding the pathogens?
10. Finally, try this activity and think about how the pathogen (you!) is being transferred from person to person, or country to country.