Loading…
GCSE Combined Science · key term
A preparation containing harmless forms of a pathogen, or its antigens, that stimulates an immune response and provides protection against a particular disease.
Used by OCR
Specification B6.3j · Biology Paper 2
Revise: Vaccines and MedicinesVaccines usually provide protection in advance, while medicines such as antibiotics and antivirals can treat infections. Other medicines relieve symptoms without removing the cause: paracetamol, for example, can reduce pain and fever but does not kill the pathogen.
A vaccine supplies antigens, not ready-made antibodies. Explain that the person's lymphocytes produce antibodies and memory cells.
Create a free account to keep every note you open and track your progress.
