โควิด, ทดสอบ, แรงงาน, มาลา, บัตรวัคซีน, บวก, มือ, มือมนุษย์, ใกล้ชิด, ควบคุม, ความร้อน
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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