Chelsea Alexandra - Grammar teacher - Los Angeles
1st class free
Chelsea Alexandra - Grammar teacher - Los Angeles

Chelsea Alexandra profile and their contact details have been verified by our experts

Chelsea Alexandra

  • Rate ₹2,372
  • Response 1h
Chelsea Alexandra - Grammar teacher - Los Angeles
  • 5 (1 review)

₹2,372/hr

1st class free

Contact

1st class free

1st class free

  • Grammar
  • Literacy
  • Test prep
  • CV writing

Graduate from Johns Hopkins University and Northwestern. Teaches English and Grammar. Willing to tutor other subjects.

  • Grammar
  • Literacy
  • Test prep
  • CV writing

Class location

About Chelsea Alexandra

Hello! My name is Chelsea, and I’m a public health professional and educator with advanced training in epidemiology, global health, and infection prevention. I hold a Master of Public Health in Applied Epidemiology and a Master of Science in Global Health, as well as a graduate certificate in Healthcare Epidemiology from Johns Hopkins University.

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About the class

  • Classes 1 to 5
  • Classes 6 to 8
  • Class 10
  • +9
  • levels :

    Classes 1 to 5

    Classes 6 to 8

    Class 10

    Classes 11 & 12

    Class 12

    BTech

    Class 11

    Adult Literacy

    Masters

    PhD

    MBA

    Kindergarten (LKG, UKG)

  • English

All languages in which the class is available :

English

Introduction to Epidemiology: How Diseases Spread

Level

Beginner – Undergraduate / Adult learners / Public health students

Duration

60 minutes



Learning Objectives

By the end of this lesson, students will be able to:
1. Define epidemiology and explain its importance in public health.
2. Understand basic concepts such as incidence, prevalence, and risk factors.
3. Describe how epidemiologists investigate disease outbreaks.
4. Apply epidemiologic thinking to real-world health events.



Lesson Outline

1. Introduction (10 minutes)
• Brief introduction to epidemiology.
• Why epidemiology matters for global health, policy, and prevention.
• Real-world example: the role of epidemiology during the **COVID-19 pandemic.

Discussion Question:
Why do you think some diseases spread faster than others?



2. Core Concepts (20 minutes)

Key Terms
• Incidence – number of new cases in a population during a time period
• Prevalence – total number of cases in a population
• Risk factor – characteristic that increases disease likelihood
• Outbreak – sudden increase in disease cases

Example Activity

Students analyze a simple dataset:

Population: 10,000 people
New flu cases this month: 200

Question:
What is the incidence rate?



3. Case Study (20 minutes)

Case study: Foodborne illness outbreak investigation.

Students learn how epidemiologists:
1. Identify cases
2. Trace exposure sources
3. Test hypotheses
4. Implement prevention measures

Example historical case:
The 1854 Broad Street cholera outbreak investigation by John Snow.

Students examine a map of cases and identify the likely source.



4. Interactive Exercise (5–10 minutes)

Students answer:
• What might cause an outbreak in a university dormitory?
• What interventions could stop it?

Examples:
• vaccination
• quarantine
• improved sanitation



5. Wrap-Up (5 minutes)

Key takeaways:
• Epidemiology helps identify patterns of disease.
• Data drives public health decisions.
• Prevention strategies depend on understanding transmission.



Homework (Optional)

Students read about the eradication of Smallpox and write a short paragraph explaining how epidemiology contributed to global eradication.

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Rates

Rate

  • ₹2,372

Pack prices

  • 5h: ₹11,859
  • 10h: ₹23,718

online

  • ₹1,897/hr

free classes

This first free class with Chelsea Alexandra will allow you to get to know each other and to specify the exact learning requirements for the upcoming classes.

  • 1hr

Chelsea Alexandra 's video

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