Book
Fish Samples for Disease Diagnosis
- Maximum likelihood of detecting a pathogen during
disease course
When is the maximum likelihood of detecting a pathogen during the disease course?
The end of the incubation time and as soon as clinical disease signs appear because this is a period of the highest pathogen load in infected fish tissues. Samples for serological assays are best taken 14 days from the disease onset (Figure 1). However, for farm inspection, certification, and zone delineation, samples can be taken at any time of the year.
Figure1: A classical infectious disease course.
