spot infection

Crawfishes ( Cambarus proclarkii) as animal were infected with white spot syndrome virus ( WSSV) for studying various infection characters, including temperature, transfer route, successive infection, median lethal dose ( LD 50), immunity against virus and virus conservation etc.

应用克氏原螯虾作为动物模型研究对虾白斑综合征病毒（WSSV）的感染增殖特性，涉及感染温度、感染途径、继发感染、半数致死量（LD50）、免疫保护及保存期等。

Under conditions of 27 t, pH 8.0 and salinity 33, we studied the method of latent infection of white spot syndrome virus ( WSSV) in Penaeus japonicus by nested-PCR and dot blot hybridization.

在27℃，pH8.0，盐度33条件下，用套式PCR方法和斑点杂交方法对日本对虾（Penaeus japonicus）体内潜伏性感染WSSV的方法进行了研究。

The Ultrastructural Changes of Poplar Leaf Cells after Black Spot Pathogen Infection

黑斑病菌侵染后杨树叶片细胞超微结构的变化

A urine test can diagnose the sexually transmitted infection chlamydia in men within an hour, enabling on-the-spot treatment.

一个尿样检测一小时之内就可以诊断出衣原体性别传输感染，使当场治疗成为可能。