कोरोना, दवा, सर्वव्यापी महामारी, कोरोना टेस्ट, त्वरित परीक्षण, कोविड -19, कोविड, मानव का हाथ, क्लोज़ अप, विज्ञान, स्वास्थ्य और चिकित्सा
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