The European Union started the approval process for its third vaccine on Tuesday after WHO scientists warned that herd immunity
EU gets vaccine boost as WHO dampens hope of herd immunity

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The European Union started the approval process for its third vaccine on Tuesday after WHO scientists warned that herd immunity
Achieving herd immunity to COVID-19 is an impractical public health strategy, according to a new model developed by University of
Could herd immunity for coronavirus be within reach for US? Fox News medical contributor Dr. Nicole Saphier explains. A Washington D.C.-based