Table 1.

Oligonucleotide primers used in the PCR assay.

genes	Primer sequences (5’ - 3’)	annealing temperature	Reference
bvfA	F: ACCCTTCGTCGATGTGCTGA	65°C	(13)
	R: CCGCGCTGATTTCATCGCTG
virB	F: CGCTGATCTATAATTAAGGCTA	54°C	(12,19)
	R: TGCGACTGCCTCCTATCGTC
Ure	F: GCTTGCCCTTGAATTCCTTTGTGG	65°C	(15)
	R: ATCTGCGAATTTGCCGGACTCTAT