Common preventive public health measures are:

a) Education : People should be educated about the infectious diseases.

b) Vaccination : People should get vaccination to avoid infection.

c) Sanitation : Proper sanitation can prevent spread of diseases.

d) Isolation : The patient should be separated to avoid infection to others.

e) Sterilization : Patient's belongings should be sterilized.

f) Eradication of vectors : The breeding places of the vectors should be destroyed and adult vectors killed by suitable methods.