From 1992 to 1995, a previous epidemic area and a non-epidemic area both in Guangzhou Haizhu district and Haikang city were selected as the DF surveillance points.
1995年，在广州市珠海区和海康市各选择1个既往登革热（简称DF）流行区和非流行区作为DF监测点，并对省内临床疑似DF病人进行监测。
From 1992 to 1995, a previous epidemic area and a non-epidemic area both in Guangzhou Haizhu district and Haikang city were selected as the DF surveillance points.
1995年，在广州市珠海区和海康市各选择1个既往登革热（简称DF）流行区和非流行区作为DF监测点，并对省内临床疑似DF病人进行监测。
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