This diagram covers Disease Transmission Methods within Pathogens and Disease Transmission for GCSE Biology. Types of pathogens, how diseases spread, transmission methods, and prevention strategies It is section 4 of 19 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.
Disease Transmission Methods

Practice questions for Pathogens and Disease Transmission
What is a pathogen?
Explain why viruses need to infect host cells in order to reproduce.
Quick recall flashcards
What is direct transmission?
When pathogens are passed directly from one person to another through physical contact
What is a pathogen?
A microorganism that causes disease in living organisms