How does Omicron compare with Delta? Here's what we know about infectiousness, symptoms, severity and vaccine protection
- Written by: Sanjaya Senanayake, Associate Professor of Medicine, Infectious Diseases Physician, Australian National University
ShutterstockSince Omicron was detected in South Africa in late November, the SARS-CoV-2 variant has spread to more than 165 countries and is now the dominant strain.
Omicron has more mutations than other strains: 72 in total, the most concerning of which make the virus more transmissible and better able to evade the immune system and vaccines.
So...