Do you know how diseases spread — and how to stop them?

In this episode of GCSE Science Simplified, we explore the main transmission routes of pathogens and the practical ways to prevent their spread. Using clear explanations and real GCSE Biology examples, we cover:

• Water-borne pathogens like Cholera

• Airborne pathogens like Tuberculosis and Chalara ash dieback

• Vector-borne pathogens like Malaria

• Oral transmission pathogens like Helicobacter

• Body fluid transmission pathogens like Ebola

You’ll learn how to break the chain of infection, protect yourself and others, and understand the logic behind disease prevention strategies — not just memorise lists.

Perfect for GCSE Biology revision, Health and Disease topics, and anyone wanting to understand how pathogens spread and how humans stop them.

Key GCSE terms covered: pathogen, transmission, cholera, tuberculosis, malaria, Ebola, hygiene, sanitation, vector control, disease prevention.

🎧 Stay tuned for the next episode: How the Body Defends Itself Against Pathogens — Barriers and the Immune System.

How do viruses and fungi cause disease — and why are viral infections so hard to treat?

In this episode of GCSE Science Simplified, we complete our Pathogens Explained series by focusing on fungal and viral pathogens. Using clear GCSE-level explanations and key specification examples, we explore how diseases like Chalara ash dieback, HIV/AIDS, and Ebola affect organisms and disrupt normal biological processes.

You’ll learn:

• The GCSE definition of a pathogen

• How fungal diseases damage tissues and transport systems in plants

• How viruses invade host cells and cause disease

• Why HIV destroys white blood cells and leads to AIDS

• How Ebola causes haemorrhagic fever

• Key differences between fungal and viral infections

Ideal for GCSE Biology revision, Health and Disease topics, and students preparing for exam questions that require clear explanation and application.

🎧 Next up: How the body defends itself — barriers, immune responses, and vaccines

GCSE Biology, Pathogens, Viruses, Fungi, HIV, AIDS, Ebola, Chalara Ash Dieback, Communicable Disease, Health and Disease, GCSE Revision, Biology Podcast, Science Revision, GCSE Science Simplified

What is a pathogen — and how do bacteria and protists actually cause disease?

In this episode of GCSE Science Simplified, we break down two major groups of disease-causing microorganisms: bacteria and protists. Using clear explanations and real GCSE-relevant examples, you’ll learn how cholera, tuberculosis (TB), and malaria affect the human body and why they spread in different ways.

We explore:

• The GCSE definition of a pathogen

• How bacterial diseases like cholera cause diarrhoea and TB damages the lungs

• How protist diseases like malaria damage the liver and blood

• Why malaria requires a mosquito vector

• Key differences between bacterial and protist infections

Perfect for GCSE Biology revision, foundation learning in health and disease, or anyone wanting a clear, jargon-free explanation of how microorganisms make us ill.

🎧 Next episode: Viruses and fungi — how they infect the body and spread disease