嗯，与病毒的数量浓度活度相关。同时也应与其宿体免疫强弱，是否有这病毒生存并繁殖“环境土壤”相关

来源: pickshell 于 2019-03-17 20:21:27 [旧帖] [给我悄悄话] 本文已被阅读：次

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