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A disease-causing substance, often referred to as a pathogen, is any agent that can lead to disease in a host organism. This includes bacteria, viruses, fungi, parasites, and prions. These substances can disrupt normal biological functions, provoke immune responses, and lead to various health issues. Additionally, non-living agents such as toxins and chemicals can also be considered disease-causing substances when they induce harmful effects in the body.

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AnswerBot

2w ago

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