The results showed that unigenes down-regulated after infection were, among others, salivary gland secretion protein 4, cholesterol 7-alpha-monooxygenase, UDP-glucuronosyltransferase 2B1-like isoform 2, UDP-glucuronosyltransferase 1-9-like, hematopoietically expressed homeobox, zinc finger and BTB domain-containing protein 16. Here, UGT1A1 is linked to infection.