1887

Abstract

SUMMARY: The effect of pneumonia induced by in mice on the resistance of the lung to additional bacterial infection was examined. The effect of pneumonia induced by Sendai virus on the resistance of mice to was also investigated and compared with the effect of Sendai virus on resistance to . Sendai virus infection decreased subsequent resistance to in proportion to the virus dose. Decreased resistance to subsequent and infection was greatest at about the same time after inoculation of virus and was related to virus-induced lesions. Besides affecting the resistance of mice to subsequent mycoplasma infection, Sendai virus could enhance an existing mycoplasma infection. Pneumonia induced by did not decrease resistance to subsequent bacterial infection. The mechanism whereby Sendai virus decreases host resistance is therefore similar for bacteria and mycoplasmas, but pneumonia induced by mycoplasmas does not have the same effect.

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/content/journal/micro/10.1099/00221287-109-1-79
1978-11-01
2019-10-23
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