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3.1.2 Viral diseases
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Viruses as pathogens

Viruses as pathogens

A virus is a pathogen that is much smaller than a bacterium. It can only reproduce inside a living host cell, using the cell's contents to make more viruses.

3.1.2 Viral diseases Lesson

  1. GCSE
  2. /Biology
  3. /3.1.2 Viral diseases

Step-by-step lessons covering AQA GCSE Biology 3.1.2 Viral diseases for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Start with the foundational topics and build up to the higher-tier material.