IHHN virus: Infectivity and pathogenicity studies in Penaeus stylirostris and Penaeus vannamei

T. A. Bell, D. V. Lightner

Research output: Contribution to journalArticle

100 Scopus citations

Abstract

Infectivity studies of infectious hypodermal and hematopoietic necrosis virus (IHHNV) were conducted on Penaeus stylirostris and P. vannamei (representing species highly susceptible and highly refractory to the disease) via intramuscular injections of the virus. Distinctive histological lesion patterns were observed between species. Six target organ systems were compared interspecifically. The gills and nerve cord/ganglia were shown to undergo significantly higher degrees of tissue damage in infected P. stylirostris compared with infected P. vannamei. Pathogenetic differences correlated well with observed differences in epizootiology between the two species. The infectivity study confirmed that IHHN disease is virus-caused. Cell-free extracts from IHHNV-infected shrimp, when injected into healthy, susceptible shrimp, produced mortalities and Cowdry type A intranuclear eosinophilic inclusion bodies presently considered pathognomonic for the disease.

Original languageEnglish (US)
Pages (from-to)185-194
Number of pages10
JournalAquaculture
Volume38
Issue number3
DOIs
StatePublished - May 15 1984

ASJC Scopus subject areas

  • Aquatic Science

Fingerprint Dive into the research topics of 'IHHN virus: Infectivity and pathogenicity studies in Penaeus stylirostris and Penaeus vannamei'. Together they form a unique fingerprint.

  • Cite this