Concern about possible outbreaks is rising not only because survivors are living in cramped, sometimes unsanitary areas, but also because the threat of disease is always higher in the summer.

• 有关单位之所以会担心可能爆发疫情，不只是因为灾民大多居住在拥挤不卫生的环境，也因为夏季即将来临，这也是疾病威胁较高的季节。