A nurse looks at test tubes after taking a blood sample from a patient suffering from Covid 19, in the Covid-19 department at the Bari Polyclinic on May 05, 2020 in Bari, Italy. 
Credit: Donato Fasano/Getty

A new strain of the novel coronavirus appears to be more contagious than the version that gained footing at the beginning of the COVID-19 pandemic, according to a new study led by scientists at Los Alamos National Laboratory (LANL). 

The new strain, dubbed D614G, surfaced in Europe in February before appearing in the east coast of the United States. It has been the dominant strain across the world since mid-March, according to the report. That fact is raising concerns, not just over the new strain’s infectivity but also because some believe the existence of a secondary strain may make some patients vulnerable to a second infection after surviving a different strain.

Because much existing research was focused on earlier strains, such research may not be applicable to this new strain, Los Alamos scientists warn. 

The 33-page report was posted on BioRxiv, and has yet to be peer-reviewed.

“The […]

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