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Coronavirus: एक मास्क के मुकाबले दो मास्क पहनने से मिल सकती है बेहतर सुरक्षा? जानिए सच्चाई

Mask acts as an excellent protection against the corona virus. There is a lot of research to prove it. The use of masks not only prevents the spread of germs from an infected person, but also prevents healthy people from getting caught. . Source link