|Author(s)||Helen O’Shea, Emily Mulherin, Jelle Matthijnssens, Matthew McCusker, P. J. Collins, Olivia Cashman, Lynda Gunn, Marijke E. Beltman and Séamus Fanning|
Group A Rotaviruses (RVA) have been established as significant contributory agents of acute gastroenteritis in young children and many animal species. In 2008, we described the first RVA strain detected in a giraffe calf (RVA/Giraffe-wt/IRL/GirRV/2008/G10P), presenting with acute diarrhoea. Molecular characterisation of the VP7 and VP4 genes revealed the bovine-like genotypes G10 and P, respectively. To further investigate the origin of this giraffe RVA strain, the 9 remaining gene segments were sequenced and analysed, revealing the following genotype constellation: G10-P-I2-R2-C2-M2-A3-N2-T6-E2-H3. This genotype constellation is very similar to RVA strains isolated from cattle or other members of the artiodactyls. Phylogenetic analyses confirmed the close relationship between GirRV and RVA strains with a bovine-like genotype constellation detected from several host species, including humans. These results suggest that RVA strain GirRV was the result of an interspecies transmission from a bovine host to the giraffe calf. However, we cannot rule out completely that this bovine-like RVA genotype constellation may be enzootic in giraffes. Future RVA surveillance in giraffes may answer this intriguing question.
Keywords: Group A Rotavirus, Giraffe, Complete genome analyses
Authors: Helen O’Shea, Emily Mulherin, Jelle Matthijnssens, Matthew McCusker, P. J. Collins, Olivia Cashman, Lynda Gunn, Marijke E. Beltman and Séamus Fanning
Journal: Veterinary Microbiology