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

T. A. Bell, Donald V Lightner

Research output: Contribution to journalArticle

98 Citations (Scopus)

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

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Litopenaeus stylirostris
Infectious hematopoietic necrosis virus
infectivity
Litopenaeus vannamei
pathogenicity
virus
shrimp
nuclear inclusions
viruses
intramuscular injection
lesions (animal)
epidemiology
gills
nerve tissue
extracts
lesion
cells
mortality
damage
tissues

ASJC Scopus subject areas

  • Aquatic Science

Cite this

IHHN virus : Infectivity and pathogenicity studies in Penaeus stylirostris and Penaeus vannamei. / Bell, T. A.; Lightner, Donald V.

In: Aquaculture, Vol. 38, No. 3, 15.05.1984, p. 185-194.

Research output: Contribution to journalArticle

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