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Ovine rotaviruses

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Author(s): S. Gazal | I.A. Mir | A. Iqbal | A.K. Taku | B. Kumar | M.A. Bhat

Journal: Open Veterinary Journal
ISSN 2218-6050

Volume: 1;
Start page: 50;
Date: 2011;
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Keywords: Ovine | Rotavirus | Electropherotypes | G and P types | Vaccine

ABSTRACT
Rotavirus has been recognized as a predominant cause of acute diarrhea in young animals and humans. Rotavirus has segmented genome composed of 11 segments of double stranded RNA. The virus has a triple layered protein shell consisting of a core, an inner capsid and an outer capsid. The inner capsid protein is responsible for group specificity and based on it rotaviruses are classified into seven groups. Ovine rotavirus strains have only been identified into two serogroups (A and B). The two outer capsid proteins (VP7 and VP4) are responsible for G and P typing of rotavirus, respectively. Although rotavirus has been frequently reported in many animal species, data regarding ovine rotavirus strains is very scanty and limited. Only a few ovine rotaviruses have been isolated and characterized so far. Recently, the G and P types circulating in ovines have been identified. The ovine rotavirus strain NT isolated from a diarrheic lamb in China is being considered as a promising vaccine candidate for human infants.

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