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Rhabdovirus disease of American penaeids, RPS.
Scientific name or taxonomic affiliation
A rhabdovirus that is cytoplasmic and contains ssRNA.
Hawaii and Equador. A virus wuth similarities to RPS and YHD but called Lymphoid organ virus (LOV) was reported from Penaeus monodon in Australia (Spann et al. 1995)
Penaeus vannamei and Penaeus stylirostris.
Impact on the host
RPS did not cause disease in shrimp following massive challenge and it caused no distinctive histopathology (other than changes to the lymphoid organ). RPS may not replicate in shrimp and may use them as a carrier host as it is very similar to certain fish rhabdoviruses in morphology and it replicated in a fish cell line.
Histology: The lymphoid organs of shrimp challenged with RPS had marked hypertrophy with numerous large hypertrophied nodules that were similar in structure to the "spheroids" in the lymphoid organ of shrimp infected with YHV, LPV, TSV and LOVV.
Electron Microscopy: RPV virons were observed in the cytoplasm of lymphoid organ cells of challenged shrimp that showed histopathology in this organ. This rhabdovirus is bullet-shaped and measures 45 × 160 nm.
Culture: The virus demonstrates cytopahtic effect in EPC (epithelioma papulosum cyprini), a fin fish cell line from carp.
Methods of Control
No known method of prevention or control.
HEALTH MANAGEMENT & DISEASE CONTROL INDEX
Hepatopancreatic parvo-like virus (HPV) . Reo-like virus (REO) . Lymphoid organ vacuolization virus (LOVV) . Taura Syndrome Virus (TSV) . You are here . White Spot Syndrome Virus (WSSV) . Infectious hypodermal and hematopoietic virus (IHHNV) . Baculovirus penaei (BP)
Vibriosis . Epicommensal fouling disease (filementous bacteria) . Necrotizing Hepatopancreatitis (NHP) . Black spot disease (BSD) . Mycobacteriosis
Larval mycosis . Fusariosis
Haplosporidia . Gregarines . Cotton Disease
Black Gill Disease (BGD) Dissolved Oxygen Crisis Nitrogen Gas Bubble Disease