GCSE Biology Specification

OCR B J257

Section B2.3: How can we prevent the spread of infections?

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#B2.3.1

explain how the spread of communicable diseases may be reduced or prevented in animals and plants, to include a minimum of one common human infection, one plant disease and sexually transmitted infections in humans including HIV/AIDS

#B2.3.2

explain the use of vaccines in the prevention of disease, including the use of safe forms of pathogens and the need to vaccinate a large proportion of the population