Neutralization of Teratogenic and Lethal Effects of Influenza-A Virus in Chick Embryos.

Abstract
Conclusions Specific immune serum will protect the 48-hour chick embryo from the teratogenic and lethal effects produced by in fection with influenza-A virus. Inasmuch as antiserum can neutralize these effects completely in vitro and to a lesser extent in ovo this study provides serological evidence to implicate the virus as the cause of the syndrome described.