«When you're
doing immunofluorescence, for instance, if you're using the wrong fixation process or fixative you could really get the wrong results even with a great antibody,» he says.
Positive FHV - 1 test results (virus isolation,
immunofluorescence techniques, and conventional PCR assays)
do not differentiate subclinically infected cats from those with clinical disease as a result of FHV - 1 infection.