What are the various public health measures, which you would suggest as safeguard against infectious diseases ?

Explanation

Maintenance of personal and public hygiene is extremely important for prevention and control .Some of the preventive measures that can be taken care are as follow.
For personal hygiene keeping the body clean, consumption of clean drinking water, food, vegetables, fruits, etc.
For public hygiene proper disposal of waste and excreta, periodic cleaning and disinfection of water reservoirs, pools, cesspools and tanks and observing standard practices of hygiene in public catering.
For vector borne disease such as malaria eradication of vectors and destroying their breeding sites. Eg. using mosquito nets and repellents, avoiding stagnation of water, regular cleaning of cooler, etc. introduction of fishes like Gambusia in ponds which feed on mosquito larvae, spraying of insecticides in ditches, drainage areas and swamps, etc.
For airborne diseases, avoid contact with infected persons or their belongings.
Vaccination and immunization these programmes for diseases should be strictly followed.