Css is the one of the colonization factor antigens which is a protective antigen can cause immune reaction by the means taking orally . in this study , carrot was separately transformed with agrobacterium tumefacience strain lba4404 that contains ctb or ctb - cs3 fused gene in order to get oral diarrhea vaccine . this is a potent strategy to produce etec oral vaccine 本研究期望通过农杆菌转化系统将ctb (霍乱毒素b亚基，可作为佐剂和载体)基因和ctb - cs3融合基因分别转入胡萝卜植株，使ctb和ctb ? cs3融合基因稳定整合到胡萝卜基因组内，希望以此获得以胡萝卜为受体的etec口服疫苗，使服食者在进食的同时就可获得腹泻免疫。
One of the outbreaks affected 12 of the 18 people who had eaten take - away food provided by a restaurant in yuen long in the afternoon on february 15 . the patients , 7 males and 5 females aged from 21 to 48 , developed diarrhea , nausea , abdominal pain and fever 6 to 45 hours after consumption . one was admitted to st teresa hospital and had already been discharged 其中一宗食物中毒个案显示１ ８人于２月１ ５日午间进食元朗一间食肆的外卖食物，其中１ ２人（ ７男５女，年龄介乎２ １至４ ８岁）在进食６至４ ５小时后，出现腹泻、晕眩、肚痛及发烧病徵， １人入法国医院留医，但现已出院， ７人曾经求诊，全部情况稳定。
People should observe good personal and environmental hygiene at all times ; keep hands clean , wash hands frequently with liquid soap , especially before eating and touching nose , mouth and eyes ; cover their mouth and nose with tissue paper when coughing or sneezing ; dispose of soiled tissues properly into a bin with lid and wash hands thoroughly 任何时刻应注意个人及环境生，保持双手清洁，经常用皂液洗手，特别是在进食或触摸口鼻或眼睛之前。当咳嗽或打喷嚏时，应用纸巾掩盖口鼻，然后把纸巾妥善包好并放入有盖的垃圾桶内，以及彻底清洁双手。
