西红柿、黄瓜、萝卜、菜瓜、香瓜等各种瓜果蔬菜生吃富于营养,值得提倡。但是,由于它们在生长、采摘、贮存、运输和售卖过程中,不可避免地会受到各种污染,上面常常带有大量的致病细菌和寄生虫卵,如痢疾杆菌、伤寒杆菌、沙门氏菌、大肠杆菌、蛔虫卵、鞭虫菌、絛虫卵……当人们生吃未消毒或消毒不彻底的瓜果蔬菜,而将这些细菌和虫卵吃进的时候,就可能得病。例如,某地卫生防疫站曾对二千五 Tomatoes, cucumbers, radishes, melons, melons and other fruits and vegetables eaten raw and nutritious, it is worth promoting. However, because they are inevitably contaminated during growth, harvesting, storage, transportation and sale, they often contain a large number of pathogenic bacteria and parasite eggs such as Shigella, Salmonella typhi, Salmonella, and large intestine. Bacillus, Ascaris eggs, whipworm bacteria, Ascaris eggs ... ... When people eat unpasteurized or unsterilized fruits and vegetables, and eat these bacteria and eggs, they may get sick. For example, a local health and epidemic prevention station used to have two thousand five