Jul 13, 2022

The rise of a new ‘Deltacron’? BA.5 combines the worst traits of Omicron with the potential for severity reminiscent of Delta, experts say

Posted by in category: biotech/medical

Relatively new COVID-19 subvariant BA.5 takes some of Omicron’s worst traits—transmissibility and immune evasion—to a new level.

But it also combines them with a penchant for affecting the lungs reminiscent of the Delta variant that hit the U.S last summer and fall, according to two recent studies.

In the case of Delta, COVID tended to accumulate in and affect the lungs, potentially resulting in more severe disease. Until recently, a silver lining of Omicron has been its tendency to instead accumulate in the upper respiratory tract, causing symptoms more similar to a cold or the flu.

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