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What vaccines contain

What vaccines contain

Four vaccine types: weakened pathogen, killed pathogen, pathogen fragments, and genetic instructions that cause cells to make an antigen

A vaccine contains a harmless form of a pathogen or its antigens. It may contain dead or weakened pathogens, surface fragments, or genetic instructions that make body cells produce one antigen briefly.

6.3.12 Vaccines and medicines Lesson

  1. GCSE
  2. /Biology
  3. /6.3.12 Vaccines and medicines

Step-by-step lessons on OCR GCSE Biology 6.3.12 Vaccines and medicines. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.

Lessons