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Face mask necessity amidst delta variant surges
Masks are important tools in the tool kit to protect people, importantly for those who are unvaccinated and who are immunocompromised, says Dr Seshadri Ramkumar, Professor, Texas Tech University.
Face masks critical till herd immunity is reached
Recent research showed that face masks helped to curtail the COVID 19 spread in the US, when face mask mandate was in effect in different states, says Dr Seshadri Ramkumar, Professor, Texas Tech University.
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