1、The water fleas are killed in the stomach but the infective larvae are liberated.
2、Septicaemic plague may result from flea bites and from direct contact with infective materials through cracks in the skin.
3、It is transmitted between animals and humans by the bite of infected fleas, direct contact, inhalation and rarely, ingestion of infective materials.
4、By using the metaphor, we can epitomize problems visually, and can make language vivid, brilliant, and full of the expressive and infective forces.
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