What virus is associated with carp pox?

The virus associated with carp pox is Cyprinid herpesvirus 1. This virus is known to cause a distinct disease in carp, characterized by the development of smooth, rounded, grey-white lesions on the skin and sometimes on the fins and gills. These lesions simulate the appearance of pox lesions, hence the name "carp pox."

Cyprinid herpesvirus 1 is part of the Herpesviridae family and specifically targets cyprinid fish, which includes species such as common carp and goldfish. The disease is typically more prevalent in stressed fish or those with compromised immune systems, often exacerbated by environmental factors such as poor water quality. Research has highlighted that while the lesions are often benign and self-limiting, they can serve as a gateway for secondary infections, leading to increased mortality in affected fish populations.

Other viruses listed in the choices are responsible for different diseases or conditions in fish, but they are not associated with the carp pox specifically. For example, Ichthyophthirius multifiliis is a protozoan parasite that leads to "ich" or white spot disease, while the viral hemorrhagic septicemia virus and spring viremia of carp virus are associated with systemic diseases that cause