Molecular characterisation and analysis of bovine rotavirus strains circulating in Ireland 2002-2004.
One hundred and two faecal samples were collected from calves diagnosed with rotavirus infection, in the southern region of Ireland, from 2002 to 2004. Ninety one percent (n=93) were confirmed positive for rotavirus, using latex agglutination and enzyme linked immunosorbent assay (ELISA) methods. Determination of the G- and P-types was carried out using nested reverse transcriptase polymerase chain reaction (nRT-PCR). G6 was the most prevalent genotype, accounting for 80.6% (75/93), G10 accounted for 6.5% (6/93) and G6G10 mixed types accounted for 9.7% (9/93) of the collection. Rotavirus in three of the samples (3.2%) could not be characterised with any of the five G-specific primers used in this study. A subset of the positive samples (n=54) was examined for their P-type specificities, P[5] and P[11] accounted for 77.8% (42/54), and 9.3% (5/54), respectively. One P[1] genotype (1.9%) was found in the collection. P[5] and P[11] mixed genotypes accounted for 11% (6/54) of the study. The genotypes corresponded to the UK-like strain (G6P[5]) 57.4%, KN4-like strain (G6[P11]) 7.4%, B223-like strain (G10P[11]) and NCDV-like strain (G6P[1]) 1.9% each. The unusual combination of G10P[5] accounted for 7.4%, with mixed infections G6+G10P[5] and G6P[5]+P[11] representing 13% and 11%, respectively. This is the first time that the G- and P-types of bovine rotaviruses (BRVs) have been determined in Ireland, and this study contributes to a better understanding of the epidemiology of such viruses circulating in Ireland.
Reidy
N
N
Virology Unit, Department of Biological Sciences, Cork Institute of Technology, Bishopstown, Cork, Ireland.
Lennon
G
G
Fanning
S
S
Power
E
E
O'Shea
H
H
D000818:Animals; D001483:Base Sequence; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods / Q000662:veterinary; D005243:Feces / Q000382:microbiology; D005838:Genotype; D007494:Ireland / Q000453:epidemiology; D007841:Latex Fixation Tests / Q000379:methods / Q000662:veterinary; D008969:Molecular Sequence Data; D010802:Phylogeny; D012367:RNA, Viral / Q000737:chemistry; D012401:Rotavirus / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D012400:Rotavirus Infections / Q000453:epidemiology / Q000662:veterinary*
D012367:RNA, Viral