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. 2016 Jun 13;13:98. doi: 10.1186/s12985-016-0554-y

Fig. 4.

Fig. 4

Frequency distribution of the cycle threshold (Ct) values for all farms positive for PRV. The PRV positive Atlantic salmon (n = 57) are shown in red, and the PRV positive coho salmon (n = 80) are shown in blue