now gadget will detect corona infected people in crowd of thousands scientists taken odour samples from socks this technology with sensors identified covid positive see research smt | Covid Detector Device: अब गैजेट हजारों की भीड़ में ऐसे पहचानेगा Corona संक्रमितों को, जानें क्या है वैज्ञानिकों का दावा

now gadget will detect corona infected people in crowd of thousands scientists taken odour samples from socks this technology with sensors identified covid positive see research smt | Covid Detector Device: अब गैजेट हजारों की भीड़ में ऐसे पहचानेगा Corona संक्रमितों को, जानें क्या है वैज्ञानिकों का दावा

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