Live attenuated salmonella vaccines to control avian pathogens
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United States of America Patent
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Jun 4, 2002
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N/A
app pub date -
Jul 24, 1998
filing date -
Jul 24, 1998
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Expired
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Abstract
A vaccine for protecting birds against infection by avian pathogenic gram negative microbes is disclosed. The vaccine is a recombinant Salmonella strain expressing O-antigen of an avian pathogenic gram negative microbe such as an E. coli strain that is pathogenic in poultry. The recombinant Salmonella strain also does not express Salmonella O-antigen. Methods of using the vaccine to immunize birds are also disclosed.
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