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What is a pathogen?
Quick Answer
A pathogen is a microorganism that causes disease. Pathogens can be bacteria, viruses, fungi, or parasites.
The Full Story
A pathogen is any biological agent capable of causing illness in a host. In microbiology, bacterial pathogens are a major focus because they can spread through food, water, air, contact, or vectors. Not every microbe is harmful; many are neutral or beneficial, and even some potential pathogens only cause disease under certain conditions. Understanding pathogens is central to medicine, epidemiology, and public health.
Key Facts
1.Can be bacteria, viruses, fungi, or parasites
2.Pathogenic bacteria cause diseases like tuberculosis and cholera
3.Many microbes are not pathogens
YouTube Angle
Suggested video title for this topic:
"The microbes that can make us sick"
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