SAN FRANCISCO (KGO) -- The R1 variant is the new strain of COVID-19 researchers are keeping a close eye on. The CDC identified "multiple spike protein mutations" in this variant. "The R.1 variant does ...

This may be a bit hard to swallow. But recently you may have heard mention of new term “razor blade throat” to describe a possible COVID-19 symptom. And chances are razor blades fall way down below ...