Question

5 communicable diseases

Answer 1

AIDS/HIV
flu
tuberculosis
rabies
pertussis
measles
hanta virus
ebola
west nile virus
MRSA
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Answer 2

Communicable diseases spread from one to another through air, water, contact, blood.  There are many.  Some of them are:

Tuberculosis TB - spreads through the infectious bacteria through air.
Viral infection - through air infected by another (fevers)
conjunctivitis - eye infection - viral through air 
HIV/AIDs - through blood mixing, transfusion
Dengue fever transmitted by mosquitoes 
Chikengunea is transmitted by the mosquitoes
amebiosis - through water