February 19, 1952
Mao Zedong, 'Comments on the Report concerning the Discovery and Handing of the Enemy Air Dropping Insects on the Korean Front'
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[Mao Zedong’s] Comments on the Report concerning the Discovery and Handing of the Enemy Air Dropping Insects on the Korean Front
(19 February 1952)
Please have Premier Zhou [Enlai] pay attention to this matter and take care of it.
19 February 
 This is Mao Zedong’s comments on the report from Nie Rongzhen, Acting Chief of Staff of the People’s Revolutionary Military Commission of the Central People’s Government, dated 18 February 1952.
 Nie Rongzhen’s report revealed that it had been discovered that insects were air dropped by the enemy on the Korean front. The report said that the insects air dropped by the enemy on the Korean were mainly spiders, flies, and fleas, and that it covered a large area, having been discovered by frontline troops of the 20th, 26th, 39th , and 42nd armies. [Nie’s report continued to state that] in addition to dispatching experts to understand the situation, the insects will be sent back to Beijing for testing in order to determine what kinds of bacteria [they are infected with]. According to the predictions by the experts, [the bacteria] cause cholera, typhoid, plague, and relapsing fever.
Mao Zedong's comment on a report from Nie Rongzhen on the dropping of insects over North Korea by the United States.
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