COVID-19 Omicron BA.5 References COVID-19 Omicron BA.5 virus subvariant Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: COVID-194 and BA.5, which are highly infectious, and BA.2, which gave rise to XBB.1.5—a highly transmissible variant, noted for its heightened ability to bind to cells and to replicate. Read More4 and BA.5, which are highly infectious, and BA.2, which gave rise to XBB.1.5—a highly transmissible variant, noted for its heightened ability to bind to cells and to replicate. Read More