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Article

Immunity to experimental fowl typhoid in chickens induced by a virulence plasmid-cured derivative of Salmonella gallinarum.

Infection and immunity - 1 Jul 1990

Barrow P A

Abstract excerpt

Chickens were immunized by two intramuscular inoculations at 1 and 14 days of age with virulence plasmid-cured derivatives of Salmonella gallinarum and were challenged 14 days later by oral inoculation of ca. 50 50% lethal doses (LD50) of fully virulent S. gallinarum 9. Mortality in the nonimmunized and immunized groups were 36 and 3%, respectively. This difference was highly significant (P less than 0.01). A...

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Identifiers

PMID: 2194968
DOI: 10.1128/iai.58.7.2283-2288.1990
PMCID: PMC258809

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