Heath - Pathogens, Bacteria, Protists - GCSE Science

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 pathogenHow bacterial diseases like cholera cause diarrhoea and TB damages the lungsHow protist diseases like malaria damage the liver and bloodWhy malaria requires a mosquito vectorKey differences between bacterial and protist infectionsPerfect 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