แบคทีเรีย, เชื้อโรค, การติดเชื้อ, จุลินทรีย์, กล้องจุลทรรศน์, ทนหลาย, ต้านทาน, ความต้านทาน, Staphylococcus, เชื้อ, ไวรัส
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