The use of the parenteral cholera vaccine has never been recommended by WHO due to its low protective efficacy and the high occurrence of severe adverse reactions.
由于保护效力较低，且严重不良反应的发生率较高，因此世卫组织从未建议使用注射用霍乱疫苗。
The use of the parenteral cholera vaccine has never been recommended by WHO due to its low protective efficacy and the high occurrence of severe adverse reactions.
世卫组织从未建议使用注射用霍乱疫苗，因为这种疫苗的保护效率较低，严重不良反应的发生率较高。
The use of the parenteral cholera vaccine has never been recommended by WHO due to its low protective efficacy and the high occurrence of severe adverse reactions.
世卫组织从未建议使用霍乱注射疫苗，因为保护作用较低，而且严重不良反应的发生率较高。
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