3.6 Gender and ages distribution of RVA strains
There were 12 and seven RVA strains detected in male and female
children, respectively. The predominant RVA strains detected in males
were the same as in females. Regarding the age distribution of RVA
strains, the main prevalent genotypes (G9P[8], G8P[8] and
G3P[8]) were detected in almost all age groups. However, all the RVA
genotypes identified in this study were circulating in children aged
0-72 months, while only four RVA strains were detected in children older
than 73 months. To our surprise, G8P[8] was the most common genotype
in children aged >73 months (59.0%, 23/39), while the
frequency of G8P[8] in children aged 0-72 months was 33.3% (69/207)
(Table 2). Furthermore, the proportion of the G8P[8] strain in these
two age groups was statistically significant (p =0.004).