Antiviral activity of Curcuma longa against Newcastle disease virus (in vitro and in vivo studies)

The antiviral activity of Curcuma longa against NDV on vero cell culture and in infected chicken was observed. The obtained results showed that low concentration of Curcuma longa 0.25% did not produce cytotoxicity on the vero cell. The effect of Curcuma longa on NDV titre was studied and the results revealed clearly that chickens treated with 1% Curcuma longa as Prophylactic also showed higher protection rate (90%), the chickens that treated with 0.5 % Curcuma longa showed protection rate (80%).Chicks that infected with NDV without treatment with Curcuma longa showed lower protection rate (8%). The chickens infected then treated with 1% Curcuma longa showed protection (65%) and the chickens infected then treated with 0.5% Curcuma longa showed protection (40%).