Figure 1
From: IPNV with high and low virulence: host immune responses and viral mutations during infection
Cumulative mortality and presence of IPN virus in pancreas and head kidney of Atlantic salmon challenged with two different IPNV strains. A. Percent cumulative mortality is significantly higher in fish infected with NFH-Ar (tank I and tank II indicated with dark and light blue, respectively) than with NFH-El (two tanks indicated with orange or yellow) after bath challenge. B. Viral titers in pancreas from 3-4 fish in duplicate tanks at day 6, day 13 and day 29 post challenge, measured by TCID50/g tissue. C. IPNV VP2 transcript levels relative to levels of NFH-El 29 d.p.i in head kidney measured by qPCR. D. IPNVVP2 Ct-values measured in head kidney from individual fish at day 13 and day 29.