Louping ill virus original isolate. This Louping ill virus is freeze dried. Tests for the presence of mycoplasmae were negative.
Product Risk Group:
Infectivity tested and quantified
Infectivity was proven by plaque titration. Infectious titre was determined to be 6 x 10^7 PFU/ml.
Production cell line:
Passaged 4 times on suckling mice in 1974 and stored freeze-dried. New stock prepared by one passage on PS cells on 21st February 2017.
Information about the collection of the virus
Biological material origin:
Collection date: BEFORE
Thursday, 21 February, 1974
Country of collection: