Argentina has reported a second case of bird flu, specifically the H5 strain, in wild ducks found in the province of Córdoba, following a previous case in the northern province of Jujuy. This detection has led to a nationwide health emergency, with increased border controls, evacuations, and surveillance efforts aiming to curb the spread of the disease. The World Health Organization has warned about the spread of avian influenza in mammals, highlighting its potential transmission to humans and the severe mortality rates in birds.