Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2002-10-9
pubmed:abstractText
Seventy five-week-old, crossbred, caesarean-derived, colostrum-deprived pigs were randomly divided into five groups of 14 pigs and assigned one of five treatments: the intranasal inoculation of 1 (5.7) TCID50 of one of four plaque-purified isolates of porcine reproductive and respiratory syndrome virus (PRRSV) (VR2385, VR2431, ISU-984 and ISU-22), or uninfected cell culture and media. Haematological variables were measured for 21 days and bone marrow was analysed when the pigs were killed three, seven, 10, 21 or 28 days after the inoculation. The PRRSV-infected pigs had non-regenerative anaemia and markedly increased myeloid:erythroid ratios from three to 21 days after inoculation. There was a significant (P < 0.05) difference in the severity of the anaemia induced by the four PRRSV isolates; the most highly pneumovirulent strains (VR2385, ISU-984 and ISU-22) induced more severe anaemia than the least virulent isolate (VR2431). The anaemia induced by PRRSV was probably due to a direct or indirect effect on erythroid precursor cells in the bone marrow.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0042-4900
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
151
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
344-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Effects of different us isolates of porcine reproductive and respiratory syndrome virus (PRRSV) on blood and bone marrow parameters of experimentally infected pigs.
pubmed:affiliation
Iowa State University, College of Veterinary Medicine, Ames 50011, USA.
pubmed:publicationType
Journal Article