They found that 81 percent of those surfaces had at least some fecal bacteria on them.

他们发现81%的表面上或多或少存在粪便细菌。

Waste from humans and animals can seep into the water, swallowing fecal bacteria can cause gastroenteritis, nausea, vomiting and diarrhea.

人和动物的排泄物会渗入水中，吞下粪便细菌会引起胃肠炎、恶心、呕吐和腹泻。

The researchers found fecal bacteria in 44% of the no-wash samples, 23% of the only-water samples, and a mere 8% of the soap samples.

研究人员发现， 44% 的未洗样品中含有粪便细菌，23% 的仅用水清洗的样品中含有粪便细菌， 而只有 8% 的肥皂样品中含有粪便细菌。