A molecular biology expert has warned Nigerians against depending on only face shield as protection against the novel coronavirus when they go out.
“What’s the basis for wearing a face shield without a face mask? I wonder if the shield can prevent the viral particle in the air that you are breathing. I think just wearing a shield without a face mask is lopsided. According to Tony Blair Institute for Global Change, the plastic face visors may provide full-face protection but there are some misconceptions about how they work.
“Shields can, therefore, be very useful tools for those facing regular contact, at proximity, with others – for instance in medical settings. They also have great value in professions where non-verbal communication through facial expressions is important, such as teaching. They could be valuable in giving protection and confidence to teachers, enabling them to return to a classroom environment,” it said.
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