Objective To find risk and protective factors in a low epidemic area of tumour.

目的：探寻肿瘤低发区胃癌的危险因素和保护因素。

youdao

Objective To study malaria control measures and effect in low-epidemic area of malaria.

目的探讨疟疾低发地区防治措施及其控制效果。

youdao

Methods 34 patients with KSD and 32 healthy controls were selected from the epidemic area of keshan disease.

方法选择黑龙江省富裕县克山病病区慢型、潜在型克山病患者34例，健康人32例。

youdao

The total figure for the epidemic in the Swansea area now stands at 942.

BBC: Vaccination in Neath Port Talbot

The number of firms going bust in the south west of England, an area badly hit by the epidemic and where the local economy is particularly reliant on tourism, rose by 46%, Monday's report showed.

BBC: Farm disease reaps bankruptcy toll