Question

What are the causes of diseases? How are diseases caused

Answer 1

Explanation:

Infectious diseases. Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi; the diseases can be spread, directly or indirectly, from one person to another. Zoonotic diseases are infectious diseases of animals that can cause disease when transmitted to humans.

Answer 2

Causes of disease:

1. Pathogens like virus, bacteria, fungi, protozoa, or worms.
2. Heredity or genetics
3. Environmental pollution.
4. Poor health and undernourishment.
5. Lack of proper treatment or immunization.