Figure 1

Primer locations. RT, PCR1 and PCR2 primers were designed based on H77 for subtype 1a and Con1 for subtype 1b, and the relative position of these primers is shown.
Primer locations. RT, PCR1 and PCR2 primers were designed based on H77 for subtype 1a and Con1 for subtype 1b, and the relative position of these primers is shown.