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The germ theory of disease proposes that invisible microorganisms (bacteria and viruses) are the cause of particular illnesses in both humans and animals. [2] Prior to medicine becoming hard science , there were many philosophical theories about how disease originated and was transmitted.
Orthoebolavirus zairense [1] or Zaire ebolavirus, more commonly known as Ebola virus (/ i ˈ b oʊ l ə, ɪ-/; EBOV), is one of six known species within the genus Ebolavirus. [2] Four of the six known ebolaviruses, including EBOV, cause a severe and often fatal hemorrhagic fever in humans and other mammals, known as Ebola virus disease (EVD).
Ebola, also known as Ebola virus disease (EVD) and Ebola hemorrhagic fever (EHF), is a viral hemorrhagic fever in humans and other primates, caused by ebolaviruses. [1] Symptoms typically start anywhere between two days and three weeks after infection. [3] The first symptoms are usually fever, sore throat, muscle pain, and headaches. [1]
Phylogenetic tree comparing ebolaviruses and marburgviruses. Numbers indicate percent confidence of branches. The genus Ebolavirus (/ i ˈ b oʊ l ə / - or / ə ˈ b oʊ l ə ˌ v aɪ r ə s /; ee-BOH-lə- or ə-BOH-lə-VY-rəs) [1] [2] [3] is a virological taxon included in the family Filoviridae (filament-shaped viruses), order Mononegavirales. [3]
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.
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The family Filoviridae is a virological taxon that was defined in 1982 [3] and emended in 1991, [9] 1998, [10] 2000, [11] 2005, [12] 2010 [13] and 2011. [14] The family currently includes the six virus genera Cuevavirus, Dianlovirus, Ebolavirus, Marburgvirus, Striavirus, and Thamnovirus and is included in the order Mononegavirales. [13]
Secondary transmission also occurs from human to human by direct contact with blood, bodily fluids, or skin of patients with or who died of Ebola virus disease. [ 74 ] Some examples of pathogens with this pattern of secondary transmission are human immunodeficiency virus/acquired immune deficiency syndrome, influenza A, Ebola virus and severe ...