American Society for Microbiology, Microbiology Spectrum, 4(11), 2023
DOI: 10.1128/spectrum.02586-22
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Our current findings highlight important aspects of IAV infection in birds that have implications for our understanding of its zoonotic ecology. In contrast to mallards where the intestinal tract is the main site of IAV replication, chickens and tufted ducks show limited or no signs of intestinal infection suggesting that the fecal-oral transmission route might not apply to all bird IAV host species.