The new Covid strain whose existence was announced by ________ earlier is known as a “variant of concern”
A. North America
B. South Africa
C. South America
D. North Africa
The new Covid strain whose existence was announced by South Africa earlier is known as a “variant of _________”
A. variant of ease
B. variant of interest
C. variant of intense
D. variant of concern
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The new Covid strain whose existence was announced by ________ earlier is known as a “variant of concern”
A. South Africa
B. North Africa
C. South America
D. North America » Read More…
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