Prevalence and genotype distribution of rotaviruses in children with gastroenteritis in Rize province.
Bosn J Basic Med Sci
; 15(3): 35-9, 2015 Jul 09.
Article
em En
| MEDLINE
| ID: mdl-26295292
ABSTRACT
Determination of the distribution of rotavirus genotypes is essential for understanding the epidemiology of this virus responsible for nearly half a million of deaths in patients with gastroenteritis worldwide. In the present study, we aimed to genotype the rotavirus strains isolated from diarrheal stool samples in children under 5 years old. A total of 1297 fecal samples were collected, and rotavirus antigen was detected in 73 of these samples. Antigen-positive samples were transferred to the Public Health Agency of Turkey, Molecular Microbiology Research Laboratory, and were tested for determination of genotypes G and P using semi-nested multiplex polymerase chain reaction method performed with consensus- and genotype-specific primers. Twelve specimens were found to be negative for rotavirus in genotyping method. All the positive-strains were in G1-4, G8-9, P(4), P(8), and P(9) genotypes. The most frequent GP genotype combinations were found to be G9P(8) in 21 strains (34.4%), G2P(4) in 14 strains (23.0%), and G1P(8) in 12 strains (19.7%). We found 10 distinct genotypes amongst a total of 61 strains. Among the strains isolated and genotyped in our study, 90.2% (55/61) and 67.2% (41/61) have already been included in the two existing commercial vaccines. In conclusion, these findings implicate the necessity of development of region-specific vaccines after evaluation of the local genotype distribution. Further studies on the large number of rotavirus strains would contribute to this process.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Infecções por Rotavirus
/
Rotavirus
/
Gastroenterite
/
Genótipo
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Child, preschool
/
Female
/
Humans
/
Male
País/Região como assunto:
Asia
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article