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Exogenous bacteria are microorganisms introduced to closed biological systems from the external world. [citation needed] They exist in aquatic and terrestrial environments, as well as the atmosphere. Microorganisms in the external environment have existed on Earth for 3.5 billion years. [1] Exogenous bacteria can be either benign or pathogenic.
The following outline is provided as an overview of and topical guide to concepts related to infectious diseases in humans.. Infection – transmission, entry/invasion after evading/overcoming defense, establishment, and replication of disease-causing microscopic organisms (pathogens) inside a host organism, and the reaction of host tissues to them and to the toxins they produce.
HeV Infection Hendra virus infection HF Heart failure: HFA High-functioning autism: HFMD Hand, foot, and mouth disease: HFRS Hemorrhagic fever with renal syndrome: HI Hearing impaired: HiB disease Haemophilus influenzae type B disease: HIBM Hereditary inclusion body myopathy: HMSN Type III
Medical history, such as close contact with other people with infectious mononucleosis Physical examination , including palpation of any enlarged lymph nodes in the neck, or enlarged spleen . The heterophile antibody test is a screening test that gives results.
This is a list of roots, suffixes, and prefixes used in medical terminology, their meanings, and their etymologies. Most of them are combining forms in Neo-Latin and hence international scientific vocabulary. There are a few general rules about how they combine.
In medicine, an endogenous infection is a disease arising from an infectious agent already present in the body but previously asymptomatic. [ 1 ] [ 2 ] [ 3 ] References
Since opportunistic infections can cause severe disease, much emphasis is placed on measures to prevent infection. Such a strategy usually includes restoration of the immune system as soon as possible, avoiding exposures to infectious agents, and using antimicrobial medications ("prophylactic medications") directed against specific infections.
An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [1] An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection.