Abstract
Infectious hypodermal and haematopoietic necrosis virus (IHHNV) is a major viral pathogen in cultured penaeid shrimp. IHHNV has many kinds of hosts, especially those in crustacean. Freshwater crayfish Procambarus clarkii is one of widespread crustaceans, which can be infected by several penaeid shrimp viruses. However, it is still unknown whether P. clarkii is susceptible to IHHNV infection. In this study, IHHNV positive samples were found in wild P. clarkii samples. In IHHNV injection experiment, 100% of P. clarkii samples showed IHHNV positive and enlarged nuclei could be observed in P. clarkii gill sections. These results suggested that P. clarkii could be infected by IHHNV both naturally and experimentally. Statement of relevanceThe freshwater crayfish P. clarkii could be infected by IHHNV naturally and experimentally. P. clarkii imposes the potential risk of transmitting IHHNV to penaeid shrimp.
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