
All You Need to Know About Omicron Sub-Variant XE: Its Symptoms, Severity, And How it Spreads
The Omicron XE sub-variant of COVID-19 has been making headlines as a noteworthy development in the ongoing pandemic. Here’s everything we know about this sub-variant. What are variants and sub-variants? Variants are versions of a pathogen that have genetic differences from the original strain. Sub-variants, on the other hand, represent