Washington: A new research has shown that antibodies in common eggs laid by hens vaccinated against the H5N1 virus can potentially prevent a possible H5N1 pandemic.
The researchers isolated H5N1-specific antibodies from consumers`` eggs sold in Vietnam, where hens are vaccinated against the pathogen, and tested them against infections with H5N1 and related H5N2 strains in mice. When delivered into the nose before infection, the antibodies from the egg yolk prevented the infection. When administered after infection, the same antibodies reduced the severity of the infection, enabling mice to recover from the disease. The chicken antibodies could be administered as a nasal spray. This form of ``passive vaccination`` could also be applied to prevent disease caused by the current pandemic H1N1, using egg yolk antibodies from hens vaccinated against the H1N1 virus. The study was published in the April 13th issue of PLoS ONE. ANI