Objective:To make an epidemiologic investigation and look for infection sources.
前言： 目的：对深圳市某一霍乱疫点进行流行病学调查和传染来源追踪。
Methods Epidemiologic investigation. Results Rangtang county is a cold and high sea level area.
结果壤塘县地形复杂，海拔高，气候寒冷。
Methods Epidemiologic investigation. Results Rangtang county is a cold and high sea level area.
结果壤塘县地形复杂，海拔高，气候寒冷。
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