Year 9 Science · Unit 1 · Lesson 17

Global Disease and Pandemics

Foundation Worksheet

Name

Date

Class

Learning Goals

Distinguish between epidemic, pandemic, endemic, and zoonosis.
Describe key historical and current pandemics and their causes.
Explain factors that drive global disease spread and the role of the WHO.

Warm Up

Sort it!

Write each item from the pool into the correct category box. Each item belongs to exactly one category.

COVID-19 is now circulating in most countries 1918 Spanish flu killed ~50 million people Malaria kills ~600,000 people per year Black Death killed ~50% of Europe's population Deforestation increases contact with wildlife HIV/AIDS has caused ~40 million deaths International air travel spreads disease in hours WHO coordinates global outbreak responses Antibiotic resistance threatens pandemic control GAVI funds vaccines for low-income countries

Past pandemic

Current pandemic / ongoing disease

Pandemic risk factor

Global health response

Your Turn

Match each term to its definition

Draw a line connecting each term on the left to its correct definition on the right. Or write the matching letter next to each term.

Term	Your answer	Definition
Epidemic		A. An infectious disease that has transferred from an animal population to a human population.
Pandemic		B. A disease outbreak that spreads rapidly, affecting many people in a specific region or community.
Zoonosis		C. The United Nations agency responsible for coordinating international public health responses.
R₀ (reproduction number)		D. The average number of additional people one infected person will infect in a fully susceptible population.
WHO		E. An epidemic that has spread across multiple countries or continents, affecting large numbers of people globally.
Malaria vector		F. The Anopheles mosquito, which transmits the Plasmodium parasite between people.

Show What You Know

1. The Black Death (1346–53) spread slowly across Europe over several years, while COVID-19 spread to every continent in under three months. Using lesson content, explain ONE reason for this difference in speed.

Recall 2 marks

2. Malaria kills approximately 600,000 people per year, mainly in sub-Saharan Africa among children. Identify ONE prevention strategy for malaria and explain why the disease remains endemic in many regions despite being preventable.

Recall 2 marks

Wrap Up

In one sentence, what was the main idea of this lesson?