| ประโยคภาษาจีน : 中文句子 | 
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|  tún shǔ豚鼠  hè和  shā shǔ沙鼠  gǎn rǎn感染  lài zhū hòu赖株后  sù zhǔ宿主  tǐ nèi体内  xuè qīng血清  jiāo yuán méi胶原酶  huó xìng活性  shuǐ píng水平  yǔ与  wèi未  gǎn rǎn感染  lài zhū赖株  dòng wù动物  bǐ jiào比较  chā yì差异  wú无  tǒng jì xué统计学  yì yì意义 | 
| There was no significant difference between the serum activities of collagenase of guinea pigs and gerbils with infection by L. interrogans serovar Lai strain Lai and those without infection (P>0.05). |