In 1990s, the diseased cases and dead cases were 43.68% and 37.55% of that of the whole year respectively, mixed infection of Hantaan and Seoul virus was found.

 
  • 90年代情况与 80年代类同 ,春季发病与死亡数分别占全年的 4 3 68%25和 37 55%25 ;
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