如果想查清病毒真相,只查一個實驗室夠嗎?病毒專家怎麼說?@

------------------

📰支持大紀元,購買日報:
https://www.epochtimeshk.org/stores
📊InfoG:
https://bit.ly/EpochTimesHK_InfoG
✒️名家專欄:
https://bit.ly/EpochTimesHK_Column