(WIVB) – The world is now rushing to learn more about the Omicron variant, which was first detected just days ago in South Africa.

More cases are popping up across the globe, including just to the north in Canada.

Dr. John Sellick, an infectious disease expert and a professor at the Jacobs School of Medicine and Biomedical Sciences at UB, stopped by News 4 on Monday to tell us more.