Overview

• Official data list 643 human cases in 2025 compared with an annual average of about 470 from 2019 to 2023, prompting renewed health warnings.
• Salta reported two new infections in the latest epidemiological week for a 2025 total of 26, while Jujuy confirmed four additional cases.
• Echinococcus granulosus spreads through a cycle in which dogs carry the adult tapeworm and shed eggs in feces that contaminate soil, water and food.
• Specialists note that contagion through dog saliva is considered unlikely without fecal contamination, though handwashing after pet contact is recommended.
• Control efforts center on deworming dogs every 45 days, not feeding raw viscera, washing produce, and using a livestock vaccine that remains scarcely implemented.