暴露于空气中对A组链球菌传染性的影响。
Effect of exposure to the atmosphere on the infectivity of group A streptococci.
作者信息
Srisuparbh K, Sawyer W D
出版信息
Infect Immun. 1972 Feb;5(2):176-9. doi: 10.1128/iai.5.2.176-179.1972.
Abstract
During exposure to the atmosphere, type 14 group A streptococci lost infectivity for mice more rapidly than they declined in viability. The loss of infectivity resulted from phenotypic, not genotypic, changes. Comparison of rates of loss of infectivity during exposure of capsulated and noncapsulated streptococci suggested that the principal effect of atmospheric exposure was on the capsule, a known determinant of infectivity. Accelerated drying promoted the loss of infectivity.
摘要
在暴露于大气环境期间，A 群 14 型链球菌对小鼠的感染力丧失速度比其活力下降速度更快。感染力的丧失是由表型变化而非基因型变化导致的。对有荚膜和无荚膜链球菌暴露期间感染力丧失速率的比较表明，大气暴露的主要影响在于荚膜，而荚膜是已知的感染力决定因素。加速干燥会促使感染力丧失。
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