Atlas of foodborne infections
transmitted by contaminated food and water

Atlas of Patogens Contents Information sources Glossary Administration

Enteric adenovirus

CZ:
EN: Enteric adenovirus

Occurrence:
Fish and Fish Products
Water and Beverages


Category:
Viruses


Foodborne Disease:
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gastroenteritis


Description:
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Adenoviruses are medium-sized (90–100 nm), nonenveloped (naked) icosahedral viruses composed of a nucleocapsid and a double-stranded linear DNA genome. There are 55 described serotypes in humans, which are responsible for 5–10% of upper respiratory infections in children, and many infections in adults as well.
In humans, there are 55 accepted human adenovirus types (HAdV-1 to 55) in seven species (Human adenovirus A to G). Different types/serotypes are associated with different conditions:
•    respiratory disease (mainly species HAdV-B and C)
•    conjunctivitis (HAdV-B and D)
•    gastroenteritis (HAdV-F serotypes 40 and 41)
Adenoviruses represent the largest nonenveloped viruses. Because of their large size, they are able to be transported through the endosome (i.e. envelope fusion is not necessary).

The enteric adenovirus causes 5-20% of the gastroenteritis in young children, and is the second most common cause of gastroenteritis in this age group. By 4 years of age, 85% of all children have developed immunity to the disease.

Parvo-like viruses have been implicated in a number of shellfish-associated outbreaks, but the frequency of disease is unknown. A mild, self-limiting illness usually develops 10 to 70 hours after contaminated food or water is consumed and lasts for 2 to 9 days.

The clinical features are milder but otherwise indistinguishable from rotavirus gastroenteritis. Co-infections with other enteric agents may result in more severe illness lasting a longer period of time.


Pictures:

Adenovitus
Source: Adenovirus

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