1887

Abstract

SUMMARY: Groups of chickens were vaccinated intravenously with live cultures of possessing transfer factors F, I, A2 or no transfer factor (Tra) and their immunity challenged by injecting them intravenously with an F strain of or an F or I strain of Compared with the Tra strain, vaccination with the F, but not the I or A2, strain significantly reduced the mortality rate caused by the F salmonella strains; vaccination with the I or A2, but not the F, strain significantly reduced the mortality rate caused by the I salmonella strain.

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/content/journal/micro/10.1099/00221287-89-1-133
1975-07-01
2021-07-23
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