. 878 rice field samples and 531 leafhopper field samples from ten provinces
of China were screened for the presence of RDV using the two serological assays and the IC-RT-PCR and
the results indicated that 37 of the 878 rice samples and 22 of the 531 leafhopper samples were infected
by RDV. All positive samples were from Yunnan Province, indicating that RDV is prevalent in this province,
but not in the other nine provinces.