But an infectious disease doctor has now told DailyMail.com that these new mutations, which alter the 'spike proteins' of the coronavirus, also appear to make the pandemic illness less capable of penetrating and infecting human cells.
This mixed blessing has medical professionals warning of an impending Covid wave this summer, which should make these sneakier - but less infectious - strains of the virus more common.
'Once they evade those defenses their ability, their infectiousness, is not quite as great as some of the earlier variants'
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