Infections | Pathogens | Infectious diseases
Generally, infectious diseases are caused by harmful agents called pathogens which typically get into your body. Common causes of infectious diseases are viruses, bacteria, fungi and parasites. Usually, these infectious diseases spread from one person to another through contaminated food or water and also from bug bites. But some infections are minor and some are serious illnesses. Causes Typically, infectious diseases are caused by various agents that usually enters your body from the outside which includes: Viruses. Bacteria. Fungi. Parasites. Prions. You may experience some symptoms when your cells are damaged or destroyed by the entering organisms and how your immune system responds to the infection. Types of infectious diseases Infectious disease can be viral, bacterial, parasitic or fungal infections. And there is a rare group of infectious diseases called transmissible spongiform encephalopathies or TSEs. Viral infections: Usually, viruses are the pieces of DNA...