Published in Medical Letter on the CDC and FDA, August 22nd, 2004
According to recent research published in the Journal of Virological Methods, "Avian influenza (AI) viruses are endemic in wild birds and if transmitted to poultry can cause serious economic losses. In the study of AI, the quantitation of virus shed from infected birds is valuable in pathogenesis studies and to determine the effectiveness of vaccines, and is performed routinely by cultivation of virus containing samples using embryonating chicken eggs (ECE) and expressed by 50% egg infectious dose (EID50 )....
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