What are the differences between public health section and preventive medicine section from public health perspective?

Q1:What are the differences between public health section and preventive medicine section from public health perspective? What
their work in community and how they preform it?
Tip: list down the differences between public health and preventive medicine and how they differ. For their work in community how they are controlling TB patient, HIV , etc Programs they have..
Q2: How public health department is controlling the communicable diseases and infection diseases, mention the mechanism of controlling?
Tip: In brief, differeintiate between communicable diseases and infections disease list down examples for each. Also what is the mechanism of prevention of such as those diseases.
Guidleine:

1. Your response should be a minimum 1200 words and max 1500 words
2. Font should be 12 Times New Roman
3. Headings should be Bold segregated in paragraphes for each part of the question.
4. Color should be Black
5. Line spacing should be 1.5
6. AVOID PLAGIARISM
7. You should use at least three reference
8. Submit this WORD Document when you complete the required task
9. Submission should be before the deadline (submission after the deadline is not allowed)
10. Use reliable references (APA format). Please see below web link about how to cite APA
    reference style.