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While it is commonly assumed that people either recover or die from infections, long-term symptoms—or sequelae—are a possible outcome as well. [1] Examples include long COVID (post-acute sequelae of SARS-CoV-2 infection, PASC), Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), and post-Ebola virus syndrome. [1]
Virus latency (or viral latency) is the ability of a pathogenic virus to lie dormant within a cell, denoted as the lysogenic part of the viral life cycle. [1] A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life cycles in which ...
Persistent infections involve viral material that lays dormant within a cell until activated by some stimulus. This type of infection usually causes few obvious changes within the cell but can lead to long chronic diseases. Transforming infections are also referred to as malignant transformation.
One to three of every 100 COVID-19 infections are lasting more than one month, researchers said, allowing the virus to continue to mutate. ‘Persistent’ COVID infections may be creating new ...
Common cold (Acute viral rhinopharyngitis; Acute coryza) Based on symptoms Supportive care No Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Coronavirus disease 2019 (COVID-19) Yes: Coxsackie B virus: Coxsackie B virus infection Enterovirus infection is diagnosed mainly via serological tests such as ELISA and from cell culture.
An infection that is inactive or dormant is called a latent infection. [54] An example of a latent bacterial infection is latent tuberculosis. Some viral infections can also be latent, examples of latent viral infections are any of those from the Herpesviridae family. [55]
A slow virus is a virus, or a viruslike agent, etiologically associated with a slow virus disease.A slow virus disease is a disease that, after an extended period of latency, follows a slow, progressive course spanning months to years, frequently involves the central nervous system, and in most cases progresses to death.
Other infections can be persistent, during which progeny viruses are continually produced at a low rate without causing cell lysis in a host state commonly called the carrier state. Most known archaeal viruses establish a persistent infection, being common among haloviruses and dominant among hyperthermophilic archaeal viruses.