scholarly journals Virus Infections of the Gastrointestinal Tract

1983 ◽  
Vol 58 (5) ◽  
pp. 397-398
Author(s):  
J A W. Smith
Author(s):  
Philip Dormitzer ◽  
Ulrich Desselberger

Acute gastroenteritis is frequently caused by rotaviruses, human caliciviruses (noroviruses, sapoviruses), astroviruses and enteric adenoviruses (group F): these cause much disease worldwide and considerable mortality, mainly in developing countries. Other viruses found in the human gastrointestinal tract are not regularly associated with diarrhoeal disease, except in patients who are immunosuppressed and in whom herpes simplex virus, cytomegalovirus, and picobirnaviruses can cause diarrhoea, as can HIV itself....


2021 ◽  
Vol 8 (1) ◽  
pp. 5-7
Author(s):  
J Robinson ◽  
I Banerjee ◽  
A Leclézio

Background: The international situation surrounding the COVID-19 pandemic is seeing multiple countries battle various waves of the SARS-CoV-2 virus infections, with millions of individuals being infected globally. COVID-19 cases initially involved the immuno-compromised and elderly. As the virus has infected millions globally, the demographic profile of cases has shifted with more children being infected; this increase in younger individuals contracting the infection has resulted in new symptoms with altered manifestations and presentations of the disease in the young. In comparison to the severe symptoms of COVID-19 in adults children present with a more trivial group of symptoms. The majority of children develop mild symptoms or remain asymptomatic. This is in stark contrast to adults who have a higher admission rate with severe symptoms. A sign of great importance and now incidence in pediatric cases with COVID-19 is that of the gastrointestinal tract. The virus has a tropism for the GIT due to the presence of ACE2 receptors, which facilitate the entry of the virus into the cell. Conclusion: It is now established that the GIT symptoms form part of a newly recognized multisystem inflammatory syndrome (MIS-C) which occurs as a result and or manifestation of the COVID-19 infection. The innate difficulty in correctly and accurately diagnosing such a case is that the symptoms very close mimic gastroenteritis and acute abdominal pathologies. Therefore, physicians need to be aware of the various manners in which the COVID-19 infection manifests itself in children to diagnose better and isolate the cases. 


1985 ◽  
Vol 6 (2) ◽  
pp. 52-58 ◽  
Author(s):  
Susan T. Bagley

AbstractThe genus Klebsiella is seemingly ubiquitous in terms of its habitat associations. Klebsiella is a common opportunistic pathogen for humans and other animals, as well as being resident or transient flora (particularly in the gastrointestinal tract). Other habitats include sewage, drinking water, soils, surface waters, industrial effluents, and vegetation. Until recently, almost all these Klebsiella have been identified as one species, ie, K. pneumoniae. However, phenotypic and genotypic studies have shown that “K. pneumoniae” actually consists of at least four species, all with distinct characteristics and habitats. General habitat associations of Klebsiella species are as follows: K. pneumoniae—humans, animals, sewage, and polluted waters and soils; K. oxytoca—frequent association with most habitats; K. terrigena— unpolluted surface waters and soils, drinking water, and vegetation; K. planticola—sewage, polluted surface waters, soils, and vegetation; and K. ozaenae/K. rhinoscleromatis—infrequently detected (primarily with humans).


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