Southern New Hampshire University

PHE101: Fundamentals of Public Health

A study guide to SNHU's PHE101, the online introduction to public health history, the ten essential services and the core knowledge areas.

Updated October 2026 · 5 min read

PHE101 is the three-credit online introduction to public health at Southern New Hampshire University.

The catalog says it covers the field's historical evolution, fundamental theories, concepts and practice in the US, and its core values and ethical principles.

It outlines the structure of the public health system, the ten essential services and the core knowledge areas: epidemiology, biostatistics, social and behavioral sciences, environmental health, and healthcare policy and administration.

It looks like a survey course, and it is, but breadth is the difficulty. Each area has its own vocabulary, and assignments ask you to connect them to a real health problem rather than define terms in isolation.

Course at a Glance

ItemDetails
UniversitySouthern New Hampshire University (SNHU)
Course codePHE101
Credits3
LevelUndergraduate, introductory
DeliveryOnline
Goal nameGlobal Healthcare Perspectives
Typical workDiscussions, short papers, applied case work (varies by term)

What PHE101 Covers

Area (from the catalog)What it means in practice
History and evolutionHow public health responded to disease, sanitation and social conditions over time
Values and ethicsBalancing individual liberty with community protection
System structure and ten essential servicesWho does public health work, and which functions it performs
Epidemiology and biostatisticsCounting, comparing and interpreting health data
Social and behavioral sciencesHow behavior, culture and social conditions shape health
Environmental healthHow air, water, food and surroundings affect populations
Policy and administrationHow laws and organizations deliver and fund services

Key Concepts Explained

Population Versus Individual Thinking

Clinical care treats one patient at a time. Public health asks what is happening across a whole group and what can prevent illness before it starts. Many assignment prompts can be answered by switching from "what should this patient do" to "what can the community do".

Levels of Prevention

Primary prevention stops disease before it occurs, secondary prevention detects it early, and tertiary prevention limits harm in people already affected. Sorting an intervention into one of these levels is a common and quick way to show understanding.

Invented illustration: A school vaccination clinic is primary prevention. A community blood-pressure screening day is secondary. A structured support program for people recovering from a stroke is tertiary.

Incidence and Prevalence

Incidence counts new cases in a period; prevalence counts all existing cases at a point or period. Keeping them apart avoids a very common error.

Invented illustration: In a town of 10,000 people, 50 people develop a condition this year (incidence), while 400 people are living with it (prevalence). Treatment that helps people live longer raises prevalence even if incidence stays the same.

Typical Assignments and How to Approach Them

Task typeWhat it testsHow to approach it
Discussion postsApplying core areas to a topicPick one health issue and show how two areas explain it
Short paper on a health issueConnecting history, data and policyDefine the problem, show who it affects, name an intervention
Essential services analysisUnderstanding system functionsMatch a real program to specific services
ReflectionValues and ethicsTake a position and acknowledge the competing principle

Working with the Ten Essential Services

The catalog names the ten essential services as a core part of the course, and many prompts ask you to apply them. Learn to group them, because grouping is faster than memorizing a list. A common grouping follows the three core functions of public health: assessment, policy development and assurance.

Core functionWhat it involvesExample of a program activity
AssessmentMonitoring health and investigating problemsTracking infection reports in a county
Policy developmentInforming people and building plans and lawsDrafting a smoke-free housing rule
AssuranceMaking sure services and a skilled workforce existRunning a vaccination clinic with trained staff

When an assignment gives you a real program, list its activities and match each to a service. Then say which services the program does not cover, because identifying gaps shows analysis rather than description. Use the exact wording of the framework in your course text, since versions of the list have been updated over time.

Where Students Get Stuck

Study Tips for PHE101

How We Help with PHE101

Send your assignment prompt, rubric, readings and instructor feedback. A writer with public health training can prepare a custom answer, explain a concept using your topic, or review your own draft for accuracy and structure.

GradeEssays is independent of Southern New Hampshire University. Our work is a study and reference aid: use it to understand the material, then write and submit your own work under SNHU's academic integrity policy. Orders are written from scratch and plagiarism-checked, with free revisions within the scope of your original request and a full refund if late.

Make Your PHE101 Work Clearer

Share the assignment and any feedback. We prepare a custom response for you to study or review your draft and explain each correction.

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Frequently Asked Questions

What does PHE101 cover?

The history, theories, values and ethics of public health, the structure of the system, the ten essential services and the core knowledge areas.

What are the core knowledge areas?

The catalog lists epidemiology, biostatistics, social and behavioral sciences, environmental health, and healthcare policy and administration.

Is PHE101 online?

Yes. The catalog lists it as online, at three credits.

Does PHE101 have a prerequisite?

The catalog entry we checked lists none.

Is the maths hard?

The course introduces biostatistics at a basic level. Concepts such as rates and prevalence matter more than advanced calculation.

Can you check my PHE101 draft?

Yes. Send the draft and rubric and we review accuracy, structure and use of sources.