Kòngzhì méijiè shēngwù shì yùfáng chuánrǎnbìng de guānjiàn.
Controlling vector organisms is key to preventing infectious diseases.
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usage
媒介 means 'medium' or 'go-between' in general Chinese (as in media). In epidemiology it has the narrow technical sense of 'vector': the animal that carries a pathogen between hosts (mosquitoes, ticks, rats).
