According to the search results, there are several COVID-19 variants currently circulating, including subvariants of Omicron such as EG.5, XBB.1.5, and XBB. EG.5, also known as Eris, is a descendant of Omicron and is currently the dominant coronavirus subvariant in the United States, infecting more people than any other single strain. Another variant that scientists are watching closely is BA.2.86, nicknamed Pirola, which has been definitively tied to a few dozen cases of COVID across four continents, but experts suspect it is more widespread. However, the current increases in cases and hospitalizations in the United States are likely being driven by infections with XBB lineage viruses, not the new BA.2.86 variant. It is important to note that the situation with COVID-19 variants is constantly changing, and new information may become available at any time.