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A new coronavirus descendant related to Delta, called AY.4.2, is being closely monitored by scientists in the US, UK, and Israel. AY.4.2 is still “very rare” in the US, according to the Centers for Disease…
A new coronavirus descendant related to Delta, called AY.4.2, is being closely monitored by scientists in the US, UK, and Israel. AY.4.2 is still “very rare” in the US, according to the Centers for Disease…