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Mathan等对腹泻儿童和无症状儿童检查空肠弯曲菌,检出率相同。从腹泻住院的3岁以下儿童中分离菌株的32％和年龄配对对照组中分离菌株的24％产生的不耐热肠毒素。对无症状人群的现场调查表明,各年龄别儿童中分离菌株的21～31％和成人组分离菌株的12％亦能产生肠毒素。故Mathan等指出,空肠弯曲菌所致的肠道感染能否引起消化道症状取决于机体抵抗力而并非肠毒素。
Mathan and other children with diarrhea and asymptomatic children check Campylobacter jejuni, the same detection rate. 32% of the isolates were isolated from children under 3 years of age hospitalized with diarrhea and 24% of the isolated isolates of the age-matched control group were heat-labile enterotoxins. A field study of asymptomatic populations showed that 21-31% of isolates from children of all ages and 12% of strains isolated from adults also produce enterotoxins. So Mathan pointed out that the intestinal infection caused by Campylobacter jejuni can cause gastrointestinal symptoms depend on the body resistance and not enterotoxin.