The coronavirus is highly contagious. The appearance of new variants makes it more dangerous.

Whatever new variants may appear, the coronavirus is more dangerous with its highcontagion.

Highly contagious though the coronavirus is, the appearance of new variants makes it moredangerous.

Butfortheappearanceofnewvariants,thecoronavirus wouldn’thavebeenhighly contagious

Not only is the coronavirus highly contagious but, with the appearance of new variants, it is also more dangerous.