Log10 titer equivalents from quantitative real-time RT-PCR for viral RNA detected in oropharyngeal (OP) and cloacal (CL) swabs collected from guinea fowl or Pekin ducks; (a) A/chicken/NY/18–042097-3/2018 low dose (102 EID50), (b) A/chicken/NY/19–012787-1/2019 low dose (102 EID50), (c) A/chicken/NY/18–042097-3/2018 medium dose (104 EID50), (d) A/chicken/NY/19–012787-1/2019 medium dose (104 EID50), (e) A/chicken/NY/18–042097-3/2018 high dose (106 EID50), (f) A/chicken/NY/19–012787-1/2019 high dose (106 EID50). Statistical groups are denoted by letters and are only shown on DPI when a significant difference was observed.