(a)[1]
State one structural feature that would show a pathogen is a virus.
(b)[2]
The virus causing smallpox is in a different genus from the virus causing measles. Name the viruses that cause these diseases. smallpox; measles
(c)[2]
Explain why antibiotics, such as penicillin, cannot be used against measles.
(d)[1]
Antibiotics may be given to a person with HIV/AIDS. Suggest why antibiotics may be prescribed for a person with HIV/AIDS.
(e(i))[4]
Discuss how the reasons given in Fig. 2.1 helped the eradication of smallpox succeed.
(e(ii))[1]
Table 2.1 sets out four types of immunity. Fill in each row of Table 2.1 with a tick (✓) or a cross (\times) to show the kinds of immunity acquired by a person who received the smallpox vaccine.