Lymphocystis

Lymphocystis

Basic Information

Definition

Infection in susceptible fish with lymphocystivirus (Iridovirus family)

Synonyms

Lymphocystis virus disease type 1, lymphocystis virus disease type 2

Epidemiology

Species, Age, Sex

• Many species of freshwater and marine ornamental fish

• Not seen in catfish, salmonids, or cyprinids (koi, etc.)

Risk Factors

Stress can cause immune suppression, increase the risk of infection, and precipitate the presence of lesions in exposed fish.

Contagion and Zoonosis

• Incubation time can be long but is shorter in higher water temperatures.

• Experimentally, incubation time was 5-12 days at 20°C to 25°C (68°F to 77°F).

Clinical Presentation

DiseaseForms/Subtypes

History, Chief Complaint

Owner reports presence of typical skin lesions on one or more fish.

Physical Exam Findings

• Lesions present as raised, white to gray, nodular, verrucous lesions that can occur anywhere on the external surfaces of the body.

• Rarely, lesions can be found on the serosal surfaces of internal organs.

• Not usually fatal

• Can be self-limiting

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Jul 28, 2016 | Posted by admin in EXOTIC, WILD, ZOO | Comments Off

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