Figure 5. Infection with LPAI virus through the cloacal route.

Birds of Line 0 (A,B) and line C-B12 (C,D), were infected with H7N7 virus by the cloacal route. Viral shedding was analysed in cloacal (A,C) or oropharyngeal swabs (B,D) of infected birds (continuous line, n = 10) and sentinel non-infected birds (dashed line, n = 10). Results are represented as mean (±S.E.M) of Ct (cycle threshold) value obtained by qRT-PCR of influenza matrix gene.