biology disease - human defence system / vaccination 0.0 / 5 ? BiologyMicrobes and diseaseGCSEAQA Created by: Sadiele12345Created on: 29-10-17 17:09 how do white blood cells defend against pathogens? by phagocytosis, antibody production or antitoxin production. 1 of 5 what happens when a pathogen enters the body? the immune system tries to destroy the pathogen. 2 of 5 what do vaccinations involve? introducing small quantities of dead or inactive forms of a pathogen into the body to stimulate the white blood cells to produce antibodies. 3 of 5 what happens if the same pathogen re-enters the body? the white blood cells respond quickly to produce the correct antibodies, preventing infection. 4 of 5 hah hj 5 of 5
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