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. Some, however, are transmitted via bites from insects or animals. Others are acquired by ingesting contaminated food or water or other exposures in the environment. Signs and symptoms of infectious diseases vary, but often include fever and chills. Mild complaints may respond to home remedies, while some life-threatening infections may require hospitalisation and intravenous antibiotics. Infectious diseases, such as measles and chickenpox, can be prevented by vaccines. Frequent and thorough hand washing also helps protect you from infectious diseases.