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        What mask should we use to deal with Omicron strain?
 
Corona virus enters body cells with the help of a protein called spike and causes covid-19 disease. About 30 or more changes in the spike prote..
        
      
          
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        Can face masks help slow the spread of the virus that causes coronavirus disease (COVID-19)?Yes. Face masks combined with other preventive measures, such as getting vaccinated, frequent hand-washing a..
        
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