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An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection. Infections can be caused by a wide range of pathogens, most prominently bacteria and viruses. [2] Hosts can fight infections using their immune systems.
Infectious disease doctors are trained in clinical and laboratory skills to make the right diagnoses and organize the best treatment plans. They continue to train in the field, which helps them to ...
Common examples of contagious viral diseases include the flu, the common cold, HIV, and herpes. Other types of viral diseases spread through other means, such as the bite of an infected insect.
Infectious diseases ( ID ), also known as infectiology, is a medical specialty dealing with the diagnosis and treatment of infections. An infectious diseases specialist's practice consists of managing nosocomial ( healthcare-acquired) infections or community-acquired infections. [1] An ID specialist investigates and determines the cause of a ...
Infectious diseases are commonly transmitted through direct person-to-person contact. Transmission occurs when a person with an infectious disease touches or exchanges body fluids with someone else.
Phase 1: A virus in animals has caused no known infections in humans. Phase 2: An animal virus has caused infection in humans. Phase 3: There are scattered cases or small clusters of disease in ...
Contagious disease. A contagious disease is an infectious disease that is readily spread (that is, communicated) by transmission of a pathogen through contact (direct or indirect) with an infected person. [1] A disease is often known to be contagious before medical science discovers its causative agent. Koch's postulates, which were published ...
Prevention. Summary. A pathogen is any organism that causes disease. Viruses, bacteria, fungi, and parasites are all examples of pathogens. Your body is naturally full of microbes. However, these ...