1. Improve environmental sanitation and provide clean drinking water.

2. Promote a healthy lifestyle, such as good eating habits, moderate exercise, smoking cessation and alcohol restriction.

3. Pay attention to personal hygiene, such as washing hands frequently, keeping clean and using condoms.

4. Promote vaccination to prevent the occurrence of some infectious diseases.

5. Provide occupational health education, including training employees in correct occupational operation skills and personal protection knowledge, so as to reduce the occurrence of occupational diseases.

6, the implementation of maternal and child health care plan, to provide maternal health care and infant nutrition and health care services, to prevent the occurrence of maternal and child diseases.

Primary preventive measures are aimed at preventing the occurrence of diseases or reducing the risk of diseases. Specific functions include:

1. Prevention of diseases: Some infectious diseases, such as diarrhea and tuberculosis, can be effectively prevented by improving the environment, providing clean water and promoting a healthy lifestyle.

2. Reduce the incidence: By promoting vaccination and strengthening personal hygiene, the incidence can be reduced, especially in areas and people with high incidence.

3. Reduce the severity of diseases: Through primary preventive measures such as health education and vaccination, people can better master the knowledge of disease prevention and control, reduce the severity of diseases and avoid complications.

4. Reduce medical expenses: By strengthening health education, encouraging healthy lifestyles and other preventive measures, reduce the incidence of diseases and medical expenses, and reduce the burden on society and individuals.