It has a short incubation period, from less than one day to five days, and produces an enterotoxin that causes a copious, painless, watery diarrhea that can quickly lead to severe dehydration and death if treatment is not promptly given. Vomiting also occurs in most patients
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Summery from WHO
一、生物学性状
形态:轻度“S”型弯曲,一端有4-6条鞭毛
染色:革兰阴性
培养特性:营养要求高,生长缓慢
抵抗力:对多种抗生素敏感
羟氨苄青霉素
庆大霉素
HP
螺旋体状,鞭毛:穿过粘液层
粘蛋白酶
脂酶 降解粘液,破坏粘膜屏障
磷脂酶A2
毛样蛋白:与胃上皮细胞受体结合
Blood tests can determine if a person has been infected by measuring specific H. pylori antibodies.
A breath test can determine if H. pylori is in the patient‘s stomach. In this test, the patient is given a harmless substance — urea (尿素)with carbon — to drink. H. pylori breaks down this urea, and the carbon is absorbed into the bloodstream and lungs and then exhaled in the breath.