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. 2004 Jun;72(6):3228–3236. doi: 10.1128/IAI.72.6.3228-3236.2004

FIG. 6.

FIG. 6.

IgA antibodies in nasal washings of immunized horses. Mean absorbance values (n = 3) in ELISAs are shown for groups A to D. The horses were divided into four groups: group A received the antigens plus EtxB, given both s.c. and i.n.; group B received the same immunizations as group A but given only i.n.; group C received the same treatment as group A but without EtxB; and group D (control group) was given only EtxB both i.n. and s.c. Open bars, samples from day 0; and filled bars, samples from day 56.