(Your body normally manufactures Vitamin D with the help of sunlight.) Prolonged deficiency can cause bone and muscle weakness, but two months probably isn't enough to do long-term damage.

尽管医疗队一直在给工人们输送膳食补充剂，他们还是很可能缺乏维生素D（人体一般通过阳光制造维生素D），时间一长可能导致骨头和肌肉的衰弱，但是两个月的时间似乎不足以造成长期损伤。

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"These are very high-force, high-impact injuries so they cause a lot of damage to tissue and to bone, " said Ron Walls, chairman of the department of emergency medicine at Brigham and Women's Hospital.

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