There is no evidence that face masks or shields alone can protect against coronavirus.
The News Agency of Nigeria, NAN, quoted the Director General, Nigeria Centre For Disease Control, NCDC, Dr. Chikwe Ihekweazu, to have said this in an interview.
He said there is no evidence that face shields is effective in shielding community transmission in public, stating that there is also no evidence that using face shields outside healthcare settings can protect members of the community.
He kicked against the promotion of face shields until there is sufficient evidence to prove that it protects.
“Face shields are used in combination with face masks by health workers. However, this is not for members of the public to use.
“A recent meta-analysis published in the Lancet scientific journal of 172 observational studies done across 16 countries and six continents, proved that wearing a face mask protects everyone against COVID-19 and that eye protection could confer additional benefit for health workers only.”
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