In Vivo Efficacy of Purified Quillaja Saponin Extracts in Protecting against Infections in Atlantic Salmon ().

Piscirickettsiosis, the main infectious disease affecting salmon farming in Chile, still has no efficient control measures. is a facultative intracellular bacterium that can survive and replicate within the host macrophages, evading the immune response. Triterpenic saponins obtained from the tree have been widely studied, and have been shown to be immunomodulatory agents, suitable for feed and vaccine applications for veterinary and human uses.

(Molina) Extracts Inhibits In Vitro Infections.

infections are the cause of major bacterial disease in salmonids in Chile, and the reason for using more antibiotics compared to other salmon-producing countries. Vaccination and antibiotics have not been efficient and new approaches are needed. The safety of extracts was measured by cytotoxicity using flow cytometry of cytopathic and death of fish cell cultures and efficacy was assessed using in vitro infection models with pathogenic .

High genetic diversity of species A rotaviruses detected in swine farms in Chile.

Rotavirus A is one of the main causative agents of diarrhoea in lactating and weaned pigs worldwide. Its impact in the swine industry is well documented. However, in Chile, the current epidemiological status of rotavirus on porcine farms is unknown.