Journal of Veterinary Diagnostic Investigation, Vol 14, Issue 2, 172-175
Copyright © 2002 by American Association of Veterinary Laboratory Diagnosticians
Rapid detection of avian pneumovirus in tissue culture by microindirect immunofluorescence test
FF Jirjis,
SL Noll,
DA Halvorson,
KV Nagaraja,
EL Townsend,
SM Goyal,
and
DP Shaw
Department of Veterinary PathoBiology, College of Veterinary Medicine, University of Minnesota, St. Paul 55108, USA.
An indirect immunofluorescence (IFA) test with a 96-well, flat-bottomed microplate was developed to detect avian pneumovirus (APV) antigen in Vero cell cultures. Samples of nasal turbinates and swabs from infraorbital sinuses and trachea were collected from 4-week-old poults experimentally inoculated with APV. The APV titers by tissue culture IFA staining were compared with that of visual reading of cytopathic effect (CPE). The ability of IFA staining to detect APV antigen correlated well with visualizing CPE. The use of IFA staining of Vero cell cultures allowed detection of APV in substantially less time than the use of visualizing CPE. In addition, the use of IFA allowed specific identification of the virus in cell culture.
