TY - RPRT TI - Clade 2.3.4.4 H5 North American highly pathogenic avian influenza viruses infect, but do not cause clinical signs in American Black Ducks (Anas rubripes) AU - Erica Spackman AU - Diann Prosser AU - Mary Pantin-Jackwood AU - Christopher B. Stephens AU - Alicia Berlin PY - 2019 DO - 10.1637/11950-081418-resnote.1 UR - https://pubs.usgs.gov/publication/70203697 ID - 70203697 ER -