Figure 4From: Effect of species, breed and route of virus inoculation on the pathogenicity of H5N1 highly pathogenic influenza (HPAI) viruses in domestic ducksStudy 2: virus shedding. Ducks were inoculated by the intranasal (IN), intracloacal (IC), or intraocular (IO) route with Egypt/07 or Egypt/08 H5N1 HPAI virus. Oropharyngeal and cloacal swabs were taken from all remaining birds at 3 dpi. Groups with asterisk (*) are significantly different (p < 0.05).Back to article page