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Nodavirus: Aquatic Virus Investigated in Humans Due to Recent Cases

A virus identified for years in marine species is now being analyzed by the scientific community after indications of its possible transmission to humans have been detected. It is the."nervous necrosis virus" (NNV), a pathogen that researchers link to a serious eye disease capable of causing vision loss if not treated promptly.

Nodavirus: Aquatic Virus Investigated in Humans Due to Recent Cases

TL;DR

  • A virus identified in marine species, the "nervous necrosis virus" (NNV), is being studied for possible human transmission.
  • Researchers link the NNV to a severe eye condition, anterior uveitis with persistent ocular hypertension, which can lead to vision loss.
  • Over 70% of affected patients had handled seafood without protection or consumed raw fish/seafood.
  • The virus has been exclusively documented in aquatic environments, particularly affecting farmed white shrimp, but new data suggests broader reach.
  • The condition can cause irreversible vision damage if untreated, similar to glaucoma.
  • Patients have responded to combined treatments of antivirals, anti-inflammatories, and ocular pressure medications; surgery may be needed in severe cases.
  • This finding raises public health concerns about aquatic viruses adapting to humans and emphasizes the need for vigilance in handling and consuming seafood.