I WONDER - Are All Bacteria Harmful? Me Pregunto - Son Todas Las Bacterias Perjudiciales?

The video explains that some bacteria, known as pathogens, can be harmful and cause diseases such as pneumonia, tonsillitis, and food intoxication. These pathogens can affect many living things, including animals and plants. They enter the human body through the nose, mouth, or skin cuts, rapidly reproducing and causing infections. The immune system works to combat these diseases and threats.

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