1.
Veterinary Medical Journal. 2009; 57 (4): 683-694
em Inglês
| IMEMR
| ID: emr-145918
RESUMO
In experimental study to evaluate the L potency of 6 types of inactivated [Avian influenza vaccines] [one H5N1 and five H5N2] administered at 7 days old chickens as well as to evaluate the potency of 2 types of inactivated Al-vaccines [one H5N1 and one 115N2] administered at 7 days old ducklings with full dose [0.5 cm s/c]. The results revealed that these vaccines were different; all gave mean Haemagglutination inhibition titer varied from 2 to 5.9 log 2 along 5weeks post vaccination using homologous and heterologous antigens. These results declared that once vaccination not enough for the protection HI level against the circulating challenge viruses