The National Agri-Food Health and Quality Service (Senasa) has confirmed that fish samples from Neuquén and Río Negro provinces, specifically from El Bolsón, are free from salmonid diseases. This confirmation was made by the Senasa Regional Laboratory in San Martín de los Andes, as part of a surveillance plan aimed at monitoring diseases that affect salmonids. The findings are significant as they help maintain the disease-free status of the upper Limay river basin, including the Alicura reservoir, as per Senasa Resolution 375/2013. This status is crucial for meeting the requirements of the World Organization for Animal Health (OMSA).