What are chronic diseases?
Why are they more dangerous?
Why does chronic illness affect overall health more?
Why does weakness stay longer?
What are infectious diseases?
How do they spread?
What are non-infectious diseases?
Why can’t they spread?
What are pathogens?
Why are they dangerous?
Why are viruses difficult to treat?
Why don’t antibiotics work on them?
What diseases are caused by bacteria?
Are all bacteria harmful?
What diseases are caused by protozoa?
How do they enter the body?
How do fungi cause diseases?
Why do they grow in moist areas?
What are vectors?
Why are mosquitoes dangerous?
Why is clean water important for health?
How does dirty water cause disease?
How does air spread diseases?
Why do infections spread faster in crowds?
What is immunity?
How does the body protect itself?
What is innate immunity?
Is it present from birth?
What is acquired immunity?
How does vaccination help?
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