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A contagious disease is an infectious disease that can be spread rapidly in several ways, including direct contact, indirect contact, and droplet contact. [1] [2] These diseases are caused by organisms such as parasites, bacteria, fungi, and viruses. While many types of organisms live on the human body and are usually harmless, these organisms ...
Transfer efficiency depends not only on surface, but also on pathogen type. For example, avian influenza survives on both porous and non-porous materials for 144 hours. [13] The microbes may also be transmitted by poor use of cutlery or improper sanitation of dishes or bedlinen.
Chin J. B., ed. Control of Communicable Diseases Manual. 17th ed. APHA [American Public Health Association] Press; 2000. ISBN 978-0-87553-189-2; Red Book: 2009 Report of the Committee on Infectious Diseases. 2009. American Academy of Pediatrics. 28th ed. ISBN 978-1-58110-306-9; Centers for Disease Control and Prevention. CDC Works 24/7 ...
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 ]
A zoonosis is an infectious disease of humans caused by a pathogen that can jump from a non-human host to a human. [35] Major diseases such as Ebola virus disease and salmonellosis are zoonoses. HIV was a zoonotic disease transmitted to humans in the early part of the 20th century, though it has now evolved into a separate human-only disease. [36]
A human pathogen is a pathogen (microbe or microorganism such as a virus, bacterium, prion, or fungus) that causes disease in humans.. The human physiological defense against common pathogens (such as Pneumocystis) is mainly the responsibility of the immune system with help by some of the body's normal microbiota.
Some examples of congenital heart disease include: Pulmonary stenosis. This is a type of heart valve disease in which the pulmonary artery, the vessel connecting the heart to the lungs, is too ...
An infectious disease agent can be transmitted in two ways: as horizontal disease agent transmission from one individual to another in the same generation (peers in the same age group) [3] by either direct contact (licking, touching, biting), or indirect contact through air – cough or sneeze (vectors or fomites that allow the transmission of the agent causing the disease without physical ...