1.The biochemical reactions and motility observing of pathogenic and nonpathogenic bacteria.
肠道致病菌与非致病菌的生化反应及动力观察。
2.Any of various flagellated, usually nonpathogenic protozoa of the genus Giardia that may be parasitic in the intestines of vertebrates including human beings and most domestic animals.
动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
致病原因的原生动物属贾第虫属，可能寄生在脊椎动物体内（包括人和大部分家禽）
