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我国自六十年代以来,曾先后报告江苏、河南、辽宁等地有长潜伏期间日疟的存在;张绍武等(1981)通过实验感染,直接证实开封地区有长潜伏期间日疟。近年我省通过流行病学的调查分析,也提出滇东北、滇西北和滇中广大地区可能有长潜伏期间日疟。为判断我省是否存在长潜伏期间日疟,我们于1982年7月,选择滇西北的维两县,通过当地的媒介按蚊和病原进行自身感染实验,现将结果报告如下。
Since the 1960s, China has successively reported the presence of vivax malaria during long incubation periods in Jiangsu, Henan and Liaoning. Zhang Shaowu et al. (1981) directly confirmed the presence of vivax malaria during the long incubation period in Kaifeng through experimental infection. In recent years, our province through epidemiological investigation and analysis, also proposed that vast areas of northeastern Yunnan, northwestern Yunnan and central Yunnan may have long latent period of vivax malaria. To determine whether there is a long incubation period in our province, we selected Weixian County in northwestern Yunnan Province in July 1982 to carry out experiments on their own infection with the local media Anopheles mosquitoes and pathogens. The results are reported as follows.