infectious dose meaning in English

感染剂量
感染量

The longer incubation period could reflect differences in methodology , specificity of diagnosis , route of transmission , infectious dose , or other factors
更长的潜伏期可能反映了方法学、诊断的确切性、传播途经、感染剂量或其他因素的不同。
With this coat , the bacterium is called a " spore . " the spores are so small that even an infectious dose - between 8 , 000 and 10 , 000 spores - is smaller than a speck of dust
炭疽热的孢子体积非常小，通常8000至10000个孢子达到感染浓度，这么多数量的孢子体积要比一粒灰尘的体积还要小。