Covid-19, Science, Biology, Health, Advice.
was prominent. However, due to its infectious nature, it quickly spread from person to person and evolved as it traveled across the globe. As of February 2023, the most prevalent strains have been XBB.1.5 (66% of cases) and BQ.1.1 (20% of cases), which are subvariants of omicron (4). As the virus