I WONDER - Are All Bacteria Harmful?

Pathogens, such as pneumonia and tonsillitis, can cause diseases in animals and plants. They enter the human body through the nose, mouth, or skin cuts, leading to infections. The immune system works to combat these threats and maintain health.

What are some examples of pathogens mentioned in the text?

What types of living things can pathogens affect?

How can harmful bacteria enter the human body?

What happens to harmful bacteria once they enter the body?

What role does the immune system play in fighting off illnesses?