Fig. 4
From: Revealing new tick-borne encephalitis virus foci by screening antibodies in sheep milk
Comparing the presence of TBEV antibodies in milk and colostrum from individual animals over time and neutralisation of TBEV in colostrum. a Comparison of anti-TBEV-IgG antibody titer for samples collected from the same individual animals at Focus I (animal #1 and #2) and Focus II (animal #1 and #2) in milk samples (blue) and colostrum samples (grey). b Neutralising antibody titers of different colostrum samples detected by means of focus reduction neutralisation test (FRNT). A neutralising titer with colostrum dilution 1/16 and reducing the number of focus forming units (Ffu) by 80% was regarded as positive