Health
New Delta coronavirus subvariant AY.4.2: What we know so far – Al Jazeera English
Experts are tracking a new mutation of the Delta variant of the coronavirus reported in dozens of countries.
Health officials and scientists are closely tracking a new mutation of the coronavirus amid concerns that it could be more transmissible than the original strain.
A subvariant of the Delta variant of the virus labelled AY.4.2 has been detected in dozens…
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