对健康人群，沙门氏杆菌病也许导致短期症状譬如高烧，严重头疼，呕吐，恶心、胃肠痛苦和腹泻。

In otherwise healthy people, salmonellosis may cause short-term symptoms such as high fever, severe headache, vomiting, nausea, abdominal pain and diarrhea.

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比塞尔博士对赫库兰尼姆人群的健康和营养有了更深入的了解。

Dr. Bisel was able to gain greater insight into the health and nutrition of the Herculaneum population.

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四项是同龄组研究，也就是说研究开始时对一个健康人群做遗传筛查，然后观测其后的15年他们中哪些人会患上乳腺癌，哪些人不会。

Four were cohort studies in which a healthy population was genetically screened at the outset and followed for 15 years to see who developed breast cancer and who did not.

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