In 5-10% of cases, however, patients develop very severe watery diarrhoea and vomiting from 6 hours to 5 days after exposure to the bacterium.

但是，在5 - 10%的病例中，患者在接触这种杆菌之后的6小时至5天内出现极其严重的水泻和呕吐。

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The composite video, winner of an award STARMUS astrophotography competition, took over a year to compile in 2009 and 2010 from over 30 hours of exposure.

这段合成的视频，是STARMUS天文摄影比赛的胜利者花费一年，在2009至2010年间从超过30个小时的曝光的摄像里编制而成。

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These are prime hours for exposure to skin-damaging ultraviolet (UV) radiation from the sun, even on overcast days.

这段时间是皮肤受到太阳紫外线照射伤害的主要时段，即使是阴天也是如此。

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heart attacks,strokes,heart failure increases probably five to ten times greater than it does over just a few hours of exposure."

VOA: standard.2010.08.04

These symptoms typically disappear two to four hours after exposure, but may last longer for particularly sensitive people.

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The second phase, which occurs 12 to 24 hours after exposure, involves the recruitment of inflammatory cells to the site of inflammation.

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Warning signs of contact might not appear for hours after exposure, and extreme symptoms might not show up for days, so a victim might be unaware he or she has been exposed until it is too late for treatment.

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