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SUMMARY The causal agent of turkey rhinotracheitis (coryza) is a gramnegative nonfermentative bacterium that is relatively unreactive biochemically. The bacterium was classified as Alcaligenes faecalis. It retains virulent properties for turkey poults even after more than 20 passages on artificial medium. Although A. faecalis does not kill turkey embryos, it can infect them during egg incubation and it does multiply.
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Simmons et al. (1980) studied this question.
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