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Some viruses can "hide" within a cell, which may mean that they evade the host cell defenses or immune system and may increase the long-term "success" of the virus. This hiding is deemed latency. During this time, the virus does not produce any progeny, it remains inactive until external stimuli—such as light or stress—prompts it to activate.
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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English: Basic morphological differences between bacteria. The most often found forms and their associations. The most often found forms and their associations. Français : Formes bactériennes les plus courantes et leurs associations.
Software. Model-Builder: Interactive (GUI-based) software to build, simulate, and analyze ODE models. GLEaMviz Simulator: Enables simulation of emerging infectious diseases spreading across the world. STEM: Open source framework for Epidemiological Modeling available through the Eclipse Foundation.
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.
A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells. [ 1 ] Examples include the common cold , gastroenteritis , COVID-19 , the flu , and rabies .
very simple diagram that shows the 3 main morphologic forms of bacteria: Date: 31 January 2006: Source: did it myself: Author: Mariana ruiz LadyofHats: Permission (Reusing this file) public domain: Other versions