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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.
Lumbar puncture (contraindicated if there is a mass in the brain or the intracranial pressure is elevated), CT or MRI. Antibiotics. No. multiple bacteria. Bacterial pneumonia. Sputum Gram stain and culture, Chest radiography. Antibiotics. No. List of bacterial vaginosis microbiota.
The term pathogen came into use in the 1880s. [2][3] Typically, the term pathogen is used to describe an infectious microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus. [4][5][6] Small animals, such as helminths and insects, can also cause or transmit disease. However, these animals are usually referred to as ...
An asymptomatic carrier is a person or other organism that has become infected with a pathogen, but shows no signs or symptoms. [1] Although unaffected by the pathogen, carriers can transmit it to others or develop symptoms in later stages of the disease. Asymptomatic carriers play a critical role in the transmission of common infectious ...
Infectious disease. A hospital-acquired infection, also known as a nosocomial infection (from the Greek nosokomeion, meaning "hospital"), is an infection that is acquired in a hospital or other healthcare facility. [1] To emphasize both hospital and nonhospital settings, it is sometimes instead called a healthcare-associated infection. [2]
infectious mononucleosis: morph-form, shape Greek μορφή (morphḗ) morphology: muscul(o)-muscle: Latin mūsculus, muscle (lit. mouse-like, due to mouse-shaped appearance of some muscles; loanword from Greek μῦς (mûs), mouse, + Latin -culus, diminutive suffix) musculoskeletal system: my(o)-of or relating to muscle
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 ...
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 at the end of the ...