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1977年报告给世界卫生组织的鼠疫病例有1,447例,其中67例死亡。7976年的相应数字分别为1,508及99例。美州的鼠疫发病有所下降。1968～1977年各大陆的病例数和死亡数见表。非洲:与1976年比较,非州大陆上的鼠疫病例有了回升,主要是由于莫桑比克(97例)暴发流行的结果。1977年共有141例,其中30例死亡。前几年,马达加斯加(1977年27例)和扎伊尔(1977年4例)也报告过人间鼠疫。利比亚和坦桑尼亚也有过报导。坦桑尼亚在4年没有报导过病例之后在阿鲁沙地区又发生了2例,都死亡。
There were 1,447 plague cases reported to the World Health Organization in 1977, of which 67 were fatal. The corresponding figures for 7976 are 1,508 and 99 respectively. The onset of plague in the state of Texas has declined. From 1968 to 1977, the number of cases and fatalities on all continents is shown in the table. Africa: Compared with 1976, there has been a rise in plague in the non-state mainland, mainly due to the outbreak of epidemics in Mozambique (97 cases). In 1977 a total of 141 cases, of which 30 died. In previous years, human plague was also reported in Madagascar (27 in 1977) and Zaire (4 in 1977). Libya and Tanzania have also reported. Two more occurred in Arusha after Tanzania reported no cases in four years and both died.