Vpa2 transcripts were detected 24 h post infection (hpi) in cells infected with recombinant Bac-polh-Vpa2Ac1, Bac-polh-Vpa2like1 and Bac-polh-Vpa2like2, but not in cells infected with Bac-polh-Ø (Figure S3a). The gene discussed is POLH; the disease is infection.