1) All of the following are true regarding African trypanosomiasis EXCEPT

A) it is also known as "sleeping sickness."

B) all subspecies of Trypanosoma brucei have multiple hosts.

C) it is transmitted by the tsetse fly.

2) Bacterial encephalitis and meningitis are difficult to treat because

A) no medications exist for treatment of these infections.

B) antibiotics damage nervous tissue.

C) many antibiotics cannot penetrate the blood-brain barrier.

3) All of the following organisms cause meningitis EXCEPT

A) Neisseria meningitidis.

B) Haemophilus influenzae.

C) Cryptococcus neoformans.

D) Streptococcus pneumoniae.

E) Mycobacterium leprae.