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Figure 2 | Veterinary Research

Figure 2

From: Immunogenicity and efficacy of fowlpox-vectored and inactivated avian influenza vaccines alone or in a prime-boost schedule in chickens with maternal antibodies

Figure 2

Study 2 Kinetics of HI antibody titers induced by different vaccines. Mean HI titers (log2) using (A) H5N1 clade 1 (NIBRG14), (B) H5N8 and (C) H5N9 antigens on D0, D21 (3 weeks after the 1st vaccination), D28 and D42 (1 and 3 weeks after the 2nd vaccination, respectively). Two groups of chicks with H5N9 and FP MDA were vaccinated either with vFP89 at D0 followed by inH5N9 at D21 (prime-boost) or inH5N9 at both D0 and D21. The third group was SPF chicks without MDA vaccinated with the prime boost.

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