No. 5 on DTN's list of the Top 10 Ag Stories of the Year focuses on how dairy cattle have been affected by the H5N1 strain of avian influenza. Unlike the depopulations of poultry with a detection of highly pathogenic avian influenza at a facility, a dairy cow testing positive for H5N1 leads to a decrease in milk production and flu-like symptoms, which most recover from over time.