Argentina's health authorities, including the National Agrifood Health and Quality Service (Senasa, in Spanish), have increased biosecurity measures in response to a surge in avian flu cases, particularly in provinces bordering Uruguay, Córdoba, and Salta. This follows a nationwide sanitary emergency declaration due to the first case of avian influenza in the country. Senasa is conducting surveys, raking, and preventive controls, with plans to expand checks along borders with Brazil, Bolivia, and Paraguay. The outbreak, caused by migratory wild birds from the northern hemisphere, has led to the shutdown of backyard establishments and the urging of the productive sector to bolster biosecurity. Although the flu can be transmitted to humans, it is not considered a threat to the human population in Argentina, and symptoms in birds include ruffled feathers and diarrhea.