Key term for OCR GCSE History B, used in Early Modern Britain c.1500–c.1750.
The incorrect belief that disease was caused by 'dirt' or 'bad air', which was eventually disproved by Germ Theory.
Miasma theory appears in OCR GCSE History B revision content for The People’s Health (c.1250–Present), especially Early Modern Britain c.1500–c.1750 and Impact of government.
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