Introduction: What are Diseases and What Causes Them?
Diseases are a kind of illness that is caused by the growth of harmful organisms (bacteria, viruses, fungi) or the body’s own cells. Diseases can also be caused by physical damage to the body.
There are many different types of diseases. Some common types include:
– Viral Diseases – Parasitic Diseases – Fungal Diseases – Bacterial Diseases – Inborn Errors of Metabolism